CINXE.COM
Protection Relays
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Our industrial products include ground-fault, time delay, and intrinsically safe relays."/><meta property="og:type" content="website"/><meta property="og:site_name" content="Littelfuse, Inc."/><meta property="og:title" content="Protection Relays"/><meta property="og:url" content="https://www.littelfuse.com/products/relays-contactors-transformers/protection-relays"/><meta property="og:description" content="Jobsites that lack durable, dependable protection relays put personnel at risk for injuries from electrical faults. Additionally, productivity falls when machinery, pumps, and motors fail due to overvoltage events, arcing, or short circuits that electrical current relays would have prevented. Littelfuse provides the full range of solutions. Manufacturers, construction companies, mining and fossil fuel operations, and solar power providers rely on Littelfuse relays, relay software, ground-fault circuit interrupters (GFCIs), and ground-fault, time-delay, and intrinsically safe relays to control essential equipment. 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Additionally, productivity falls when machinery, pumps, and motors fail due to overvoltage events, arcing, or short circuits that electrical current relays would have prevented. Littelfuse provides the full range of solutions. Manufacturers, construction companies, mining and fossil fuel operations, and solar power providers rely on Littelfuse relays, relay software, ground-fault circuit interrupters (GFCIs), and ground-fault, time-delay, and intrinsically safe relays to control essential equipment. 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class="breadcrumb_p-breadcrumb-container__Kfibe " id="navBredcrumb"><nav aria-label="breadcrumb" class="global-common-container"><ol class="breadcrumb" data-testid="breadcrumbTest"></ol></nav></div><div class="container products intro-section" data-testid="IntroSectionTest"><div class="alert copy-link-alert" role="alert" id="introSectionCopyLinkAlert"><span><img alt="right icon" src="/-/media/Littelfuse/Images/General-Icons/right-icon.svg"/></span>Link has been copied to clipboard</div><div class="row page-heading"><div class="col d-inline-flex col-md-12 mr-auto flex-column"><h1 class="product-content-heading">Protection Relays</h1></div></div></div><div class="container-fluid products tab-container intro-section-tabs history-section-tabs " id="section-tab" data-testid="AnchorTabsTest"><div class="container p0"><ul class="tab-scroll nav nav-tabs product-anchor-tabs" role="list" id="anchor-tabs-scroll"><li class="nav-tabSection" role="listitem" id="anchor-tab-overviewId"><button data-rr-ui-event-key="overview" tabindex="0" type="button" data-test-id="gtm-tab-test" class="nav-link active"><span class="tab-text">Overview</span></button></li><li class="nav-tabSection" role="listitem" id="anchor-tab-resourceId"><button data-rr-ui-event-key="overview" tabindex="0" type="button" data-test-id="gtm-tab-test" class="nav-link"><span class="tab-text">Resources </span></button></li><li class="nav-tabSection" role="listitem" id="anchor-tab-featuredProductsSectionId"><button data-rr-ui-event-key="overview" tabindex="0" type="button" data-test-id="gtm-tab-test" class="nav-link"><span class="tab-text">Featured Products</span></button></li><li class="nav-tabSection" role="listitem" id="anchor-tab-informationId"><button data-rr-ui-event-key="overview" tabindex="0" type="button" data-test-id="gtm-tab-test" class="nav-link"><span class="tab-text">Information Center</span></button></li><li class="nav-tabSection" role="listitem" id="anchor-tab-support-section-id"><button data-rr-ui-event-key="overview" tabindex="0" type="button" data-test-id="gtm-tab-test" class="nav-link"><span class="tab-text">Contact Us</span></button></li></ul></div></div><div class="productltwo_product-level-two-container__5nNea global-common-container" data-section="true" id="overviewId" data-testid="BaseballCardsOverviewTest"><div class="product-level-two-content"><p class="long-desc">Jobsites that lack durable, dependable protection relays put personnel at risk for injuries from electrical faults. Additionally, productivity falls when machinery, pumps, and motors fail due to overvoltage events, arcing, or short circuits that electrical current relays would have prevented. Littelfuse provides the full range of solutions. Manufacturers, construction companies, mining and fossil fuel operations, and solar power providers rely on Littelfuse relays, relay software, ground-fault circuit interrupters (GFCIs), and ground-fault, time-delay, and intrinsically safe relays to control essential equipment. </p><h2 class="section-subtitle custom-title">Subcategories under<!-- --> <!-- -->Protection Relays</h2><div class="productltwoimage_four-columns__o_tuE row" data-testid="OverviewCardsTest"><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Power Relay Accessories" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Power Relay Accessories" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_EcvTGtEiAed71aiK.jpg%3F1728650312&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Accessories - Protection Relays</h3><p class="product-desc extra">Using the proper accessories improves the organization, safety, and performance of electrical systems. Littelfuse helps you achieve the best results</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Accessories - Protection Relays" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Arc-Flash-Detection" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Arc-Flash-Detection" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wF9caMSGgJq02AwD.png%3F1728649222&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Arc Flash Detection</h3><p class="product-desc extra">Littelfuse arc-flash relays provide superior protection against the damaging effects of arc flashes. These market-leading, arc-flash relays deliver</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Arc Flash Detection" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Feeder Protection Relays" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Feeder Protection Relays" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_wlhySO0s44111Yvn.png%3F1728649732&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Feeder Protection</h3><p class="product-desc extra">Feeder protection relays help protect power supply circuits for industrial and processing facilities. Relays made by Littelfuse provide integrated</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Feeder Protection" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Ground-Fault Relays" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Ground-Fault Relays" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_cwNBgkqQmw149kd7.png%3F1728649608&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Ground-Fault Relays</h3><p class="product-desc extra">Ground-fault relays help protect people from injuries and prevent damage to electrical equipment. Littelfuse produces relays for grounded and</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Ground-Fault Relays" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Motor and Pump Protection Relays" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Motor and Pump Protection Relays" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_QR19g70nJ0891UrC.png%3F1728649512&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Motor & Pump Protection</h3><p class="product-desc extra">Motor and pump protection relays prevent damage and stalls from overloads, jams, phase loss, unbalanced loads, heavy starts, overheating,</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Motor & Pump Protection" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Resistance Grounding" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Resistance Grounding" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_21ExTWG2qTc02EUS.png%3F1728649422&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Resistance Grounding</h3><p class="product-desc extra">Littelfuse offers a variety of resistance grounding/NGR monitoring products that work by limiting the fault current so it does not cause unwanted</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Resistance Grounding" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Shock-Block Industrial Products" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Shock-Block Industrial Products" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_ZzNuiwTQUI31Mi6U.png%3F1728649857&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Shock Block GFCI</h3><p class="product-desc extra">Littelfuse Ground-Fault Circuit Interrupter (GFCI) products protect workers against electrical shock in industrial applications. The Littelfuse</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Shock Block GFCI" href="/">View More</a><span class="arrow"></span></div></div></div></a></div><div class="col-12 col-sm-6 col-lg-3 product-col" data-testid="OverviewCardsMapItems"><a class="baseball-card-link" href="/"><div class="product"><div class="img-container content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Trailing cable protection relays" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="product-img" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Trailing cable protection relays" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_IlIlfHNn2of812JQ.png%3F1728649297&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="product-img" loading="lazy"/></noscript></span></div><div class="description"><div class="green-line-zero-mt"></div><h3 class="product-title">Trailing Cable Protection</h3><p class="product-desc extra">Trailing cable protection relays help prevent ground faults and damage from hazardous voltages. The relays also continuously monitor the integrity of</p><div class="learnmore"><a class="learnmore-link" aria-label="More about Trailing Cable Protection" href="/">View More</a><span class="arrow"></span></div></div></div></a></div></div></div></div><div class="container products p0" data-testid="resource" data-section="true" id="resourceId"><div class="product-level-wrapper"><div class="g-col"><h2 class="product-heading">Protection Relays Resources </h2></div><div class="g-col"><div class="product-tab-section"><ul class="nav nav-tabs" id="uncontrolled-tab-example1" role="tablist"><li class="nav-item" role="presentation"><button type="button" id="uncontrolled-tab-example1-tab-tab0" role="tab" data-rr-ui-event-key="tab0" aria-controls="uncontrolled-tab-example1-tabpane-tab0" aria-selected="true" class="nav-link active">Models, Drawings & Reports</button></li><li class="nav-item" role="presentation"><button type="button" id="uncontrolled-tab-example1-tab-tab1" role="tab" data-rr-ui-event-key="tab1" aria-controls="uncontrolled-tab-example1-tabpane-tab1" aria-selected="false" tabindex="-1" class="nav-link">Literature</button></li></ul><div class="tab-content"><div role="tabpanel" id="uncontrolled-tab-example1-tabpane-tab0" aria-labelledby="uncontrolled-tab-example1-tab-tab0" class="fade tab-pane active show"><div class="row tab-content"><div class="col-md-4 link-padding"><div class="link-box"><span class="icon content-slide-img-container"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Littelfuse Relays Drill Home a Safety Solution for Hydraulic Fracturing" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="resource-icon" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Littelfuse Relays Drill Home a Safety Solution for Hydraulic Fracturing" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_Q6cq9mSRiW51cFNs.png%3F1732569987&w=1920&q=75 1920w, 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Hydraulic Fracturing</a></div></div></div></div><div role="tabpanel" id="uncontrolled-tab-example1-tabpane-tab1" aria-labelledby="uncontrolled-tab-example1-tab-tab1" class="fade tab-pane"><div class="row tab-content"><div class=" more-desc " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Special-Purpose GFCI for Industrial Applications - Brochure" data-assetguid="{CA781B9E-9A7F-4C80-A2E6-D5DED9CD83C4}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Special-Purpose GFCI for Industrial Applications - Brochure" data-assetguid="{CA781B9E-9A7F-4C80-A2E6-D5DED9CD83C4}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MIgL856smDh27EMY.jpg%3F1734411724&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MIgL856smDh27EMY.jpg%3F1734411724&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MIgL856smDh27EMY.jpg%3F1734411724&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MIgL856smDh27EMY.jpg%3F1734411724&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MIgL856smDh27EMY.jpg%3F1734411724&w=1200&q=75 1200w, 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class="learnmore-link" aria-label="View More About Protection Relays and Controls Catalog">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class=" more-desc " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Arc-Flash-Brochure" data-assetguid="{91FE74C6-D5D1-4E99-BB9F-9B139C49544A}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Arc-Flash-Brochure" data-assetguid="{91FE74C6-D5D1-4E99-BB9F-9B139C49544A}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6J8Ud0qZJj48Yjdq.jpg%3F1734407773&w=3840&q=75 3840w" 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data-assetguid="{E81930D7-6A0A-432F-B50A-69A6F2DC45C3}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_QxXWJ4Jxp606IVv0.jpg%3F1734407759&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Protection Relays and Controls Catalog - Mandarin</h4><p class="para-desc">Mandarin readers can use this catalog to learn about and order Littelfuse protection relays, arc-flash detectors, and high-speed fuses.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Protection Relays and Controls Catalog - Mandarin">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Rockwell_Encompass_Brochure" data-assetguid="{D0703025-D959-4533-8DAC-FE5234D010BA}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Rockwell_Encompass_Brochure" data-assetguid="{D0703025-D959-4533-8DAC-FE5234D010BA}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_UfXgBsbsAI41wBOv.jpg%3F1734400603&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Rockwell Encompass Brochure</h4><p class="para-desc">Find protection relays, fuses, and SPDs that minimize electrical hazards and reduce costly downtime.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Rockwell Encompass Brochure">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Time_Delay_Relays_catalog_section" data-assetguid="{A9152224-B6C1-45A6-9AE4-55080E74ED59}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Time_Delay_Relays_catalog_section" data-assetguid="{A9152224-B6C1-45A6-9AE4-55080E74ED59}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_wzxXrxSGHVI11YO8.jpg%3F1733491831&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Protection Relays Catalog - Time Delay Relays</h4><p class="para-desc">We offer off-the-shelf and custom time delay relays in a wide array of configurations and for specific uses such as vending or HVAC control.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Protection Relays Catalog - Time Delay Relays">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Littelfuse-Commercial-Vehicle-Aftermarket-Catalog" data-assetguid="{05955287-0468-470D-91D8-18683F1EFED2}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Littelfuse-Commercial-Vehicle-Aftermarket-Catalog" data-assetguid="{05955287-0468-470D-91D8-18683F1EFED2}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_2gJTNnfKKJ55URwj.jpg%3F1730985402&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Automotive Aftermarket Catalog</h4><p class="para-desc">Find information about and order replacement Littelfuse fuses, relays, solenoids, connectors and other electronic components for cars and trucks.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Automotive Aftermarket Catalog">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Protection Relays Catalog Appendix Dimensional Drawings Catalog Section" data-assetguid="{60C1B049-3B57-4377-B3C6-6C46839923F3}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Protection Relays Catalog Appendix Dimensional Drawings Catalog Section" data-assetguid="{60C1B049-3B57-4377-B3C6-6C46839923F3}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kld2bjFQUS51kqEh.jpg%3F1728652220&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Protection Relays Catalog - Appendix Dimensional Drawings</h4><p class="para-desc">Access this appendix to the catalog of Littelfuse protection relays to view 2D renderings of each component.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Protection Relays Catalog - Appendix Dimensional Drawings">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Motor Protection Brochure" data-assetguid="{CFCA7AFF-FAA5-4152-8C7D-1B7DA37AFD61}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Motor Protection Brochure" data-assetguid="{CFCA7AFF-FAA5-4152-8C7D-1B7DA37AFD61}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_sJWJ1NEf81gGZgNI.jpg%3F1728651838&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Motor Protection Brochure</h4><p class="para-desc">Learn about our voltage and phase monitors, ground fault relays, overload relays, and motor protection systems.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Motor Protection Brochure">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Industrial-Fresh-Water-Pumping-Catalog" data-assetguid="{917C43F1-468A-4EB0-8873-D803228E1521}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Industrial-Fresh-Water-Pumping-Catalog" data-assetguid="{917C43F1-468A-4EB0-8873-D803228E1521}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_6QlPHYSahre37II3.jpg%3F1728651177&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Industrial Fresh Water Pumping Catalog</h4><p class="para-desc">Improve electrical safety and operations of your fresh water pumping operations.</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Industrial Fresh Water Pumping Catalog">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span 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style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">Industrial Product Selection Guide</h4><p class="para-desc extra">Our comprehensive Industrial Product Selection Guide features 225+ Relay Product Series. Color-coded and organized by product categories, this</p><div class="language-links"></div><div class="inline-lang-cta"><div class="learnmore"><div><a rel="noopener noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Industrial Product Selection Guide">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Resource" data-assetguid="{8CD304F0-C74B-4ABB-A333-4D2F3C326B3A}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Resource" data-assetguid="{8CD304F0-C74B-4ABB-A333-4D2F3C326B3A}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_MHssLXgpzgp93MTC.jpg%3F1728652048&w=1920&q=75 1920w, 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noreferrer" href="#" target="_blank" class="learnmore-link" aria-label="View More About Panel Shop & Control Systems Integrators Brochure">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="more-desc hidden " aria-hidden="true"><div class="post-container post-border resource-thumb"><div class="post-thumb content-slide-img-container" aria-hidden="true"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="Resource" data-assetguid="{FBBFED01-0183-4CFE-A0A3-517DE0EFAE5B}" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="Resource" data-assetguid="{FBBFED01-0183-4CFE-A0A3-517DE0EFAE5B}" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_UB7M9IiTEb41Y3uL.jpg%3F1724313067&w=1920&q=75 1920w, 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class="learnmore-link" aria-label="View More About How Do Arc-Flash Relays Work?">View More</a></div><span class="arrow"></span></div></div></div></div></div><div class="see-more"><button class="see-more-link" data-testid="seeMoreClick">See More<span class="arrow-see-more"></span></button></div></div></div></div></div></div></div></div><div class="container products p0" data-section="true" id="featuredProductsSectionId" data-testid="SidebySideDisplayTest"><div class="product-level-wrapper"><div id="feat-products"><div class="g-col"><h2 class="product-heading">Protection Relays<!-- --> <!-- -->Featured Products</h2></div><div class="feat-product-parent"><div class="container"><div class="row feat-products"><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="af0025" data-assetguid="b4ca4224-f11c-4838-a367-ffda0a85ea3f" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="af0025" data-assetguid="b4ca4224-f11c-4838-a367-ffda0a85ea3f" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_o9ylqthvk84Yd3eF.jpg%3F1728650567&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">AF0025</h4><div class="feat-desc extra">The AF0025 series arc-flash relay is a cost-effective and OEM-focused solution that provides innovative arc-flash protection in a compact package.</div></div></div></button><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="se-330" data-assetguid="936da105-5b20-4588-96f2-135cb19e0f73" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="se-330" data-assetguid="936da105-5b20-4588-96f2-135cb19e0f73" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">SE-330</h4><div class="feat-desc extra">The SE-330 series is an advanced ground-fault and neutral-grounding-resistor monitoring relay that is compliant with Rule 10-302 of the 2018</div></div></div></button><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="mp8000" data-assetguid="26b47990-2951-459a-8302-c1ad3664d4f8" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="mp8000" data-assetguid="26b47990-2951-459a-8302-c1ad3664d4f8" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_6VzbqngyN2Q51MdG.jpg%3F1732370385&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">MP8000</h4><div class="feat-desc extra">The MP8000 series motor protection relay is designed to protect three-phase or single-phase motors with operating voltages of 90-690 V ac (use of</div></div></div></button></div></div><div class="container"><div class="row feat-products"><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="se-105" data-assetguid="91900f8a-659f-4d21-8275-e1c197de7c70" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="se-105" data-assetguid="91900f8a-659f-4d21-8275-e1c197de7c70" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_gSj7jC1z8rb61chL.jpg%3F1732282284&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">SE-105</h4><div class="feat-desc extra">The SE-105/SE-107 is a combination ground-wire monitor and ground-fault relay for resistance-grounded systems. It continuously monitors the</div></div></div></button><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="sb5000" data-assetguid="da7e8bdd-6b20-408b-bc94-787163bd6f04" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="sb5000" data-assetguid="da7e8bdd-6b20-408b-bc94-787163bd6f04" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_omULdQC99Yv86c4A.png%3F1723095683&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">SB5000</h4><div class="feat-desc extra">Special-Purpose Ground-Fault Circuit Interrupter (SPGFCI), Class C and Class D The Industrial Shock Block® SB5000 series is a personnel</div></div></div></button><button class="col-10 col-md-5 col-lg-4 more-desc" tabindex="0"><div class="post-container"><div class="post-thumb"><span style="box-sizing:border-box;display:block;overflow:hidden;width:initial;height:initial;background:none;opacity:1;border:0;margin:0;padding:0;position:absolute;top:0;left:0;bottom:0;right:0"><img alt="se-701" data-assetguid="7a61d75f-c287-4f86-bd70-3d61830ae0f9" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="fill" class="w-100" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain"/><noscript><img alt="se-701" data-assetguid="7a61d75f-c287-4f86-bd70-3d61830ae0f9" sizes="100vw" srcSet="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=640&q=75 640w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=750&q=75 750w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=828&q=75 828w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1080&q=75 1080w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1200&q=75 1200w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=1920&q=75 1920w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=2048&q=75 2048w, /_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=3840&q=75 3840w" src="/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_AIs5D3MTwUn71kUN.png%3F-62169955622&w=3840&q=75" decoding="async" data-nimg="fill" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:contain" class="w-100" loading="lazy"/></noscript></span></div><div class="post-content"><h4 class="post-title">SE-701</h4><div class="feat-desc extra">The SE-701 series is a microprocessor-based, ground-fault relay for resistance-grounded and solidly grounded ac systems. In addition to common</div></div></div></button></div></div></div></div></div></div><div class="info-center-container"><div class="container products p0" data-section="true" id="informationId"><div class="product-level-wrapper"><div class="g-col"><h2 class="product-heading">Protection Relays Information Center</h2></div><div class="g-col"><div class="product-tab-section ultab"><ul class="nav nav-tabs" role="tablist"><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab0" role="tab" data-rr-ui-event-key="tab0" aria-controls="react-aria-7-tabpane-tab0" aria-selected="true" class="nav-link active">Overview</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab1" role="tab" data-rr-ui-event-key="tab1" aria-controls="react-aria-7-tabpane-tab1" aria-selected="false" tabindex="-1" class="nav-link">Ground Fault Protection</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab2" role="tab" data-rr-ui-event-key="tab2" aria-controls="react-aria-7-tabpane-tab2" aria-selected="false" tabindex="-1" class="nav-link">Resistance Grounding and Monitoring</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab3" role="tab" data-rr-ui-event-key="tab3" aria-controls="react-aria-7-tabpane-tab3" aria-selected="false" tabindex="-1" class="nav-link">Motor Protection and Pump Protection</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab4" role="tab" data-rr-ui-event-key="tab4" aria-controls="react-aria-7-tabpane-tab4" aria-selected="false" tabindex="-1" class="nav-link">Feeder Protection and Supplemental Monitoring</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab5" role="tab" data-rr-ui-event-key="tab5" aria-controls="react-aria-7-tabpane-tab5" aria-selected="false" tabindex="-1" class="nav-link">Arc Flash Protection</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab6" role="tab" data-rr-ui-event-key="tab6" aria-controls="react-aria-7-tabpane-tab6" aria-selected="false" tabindex="-1" class="nav-link">Flashers and Tower Light Controls</button></li><li class="nav-item" role="presentation"><button type="button" id="react-aria-7-tab-tab7" role="tab" data-rr-ui-event-key="tab7" aria-controls="react-aria-7-tabpane-tab7" aria-selected="false" tabindex="-1" class="nav-link">Time-Delay Relays</button></li></ul><div class="tab-content"><div role="tabpanel" id="react-aria-7-tabpane-tab0" aria-labelledby="react-aria-7-tab-tab0" class="fade tab-pane active show"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Protection Relays and Controls Overview</h3> <p>Littelfuse delivers vital products to address customer needs for protection, safe control, and distribution of electrical power in industrial applications.</p> <p>The Protection Relay and Control product portfolio includes a comprehensive line motor and pump protection relays, arc-flash relays, ground fault relays, feeder protection, pump controllers, time delay relays, flashers, tower lighting, and more to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from injury due to electrical faults.</p> <p>Professionals in construction, manufacturing, mining, oil & gas, solar, and many more industries rely on Littelfuse for rugged, lasting protection for their designs and critical applications.</p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab1" aria-labelledby="react-aria-7-tab-tab1" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><p>Ground faults, also referred to as earth faults, represent the vast majority of electrical faults experienced in most industrial facilities. Ground faults are caused by unintentional contact between an energized phase conductor and ground or equipment frame. The return path of the fault current is through the grounding system and any personnel or equipment that becomes part of that system. Ground faults are frequently the result of insulation breakdown, but can also be caused by other forms of cable damage or human error. It is important to note that damp, wet, and dusty environments require extra diligence in design and maintenance. Since water is conductive, it exposes degradation of insulation and increases the potential for electrical hazards to develop. In fact, studies have indicated that ground faults make up more than 95% of the recorded electrical faults, such as arc flash incidents. </p> <p>Ground fault protection relays, Ground fault protection relays are designed to detect phase to ground fault on a electrical system and trip when the electrical current exceeds the trip time setting. By quickly detecting the ground fault and initiating the appropriate response, ground fault relays improve electrical safety for workers and minimize damage to equipment due to electrical faults without affecting the uptime of critical operations. Ground faults are the most common type of fault in an electrical system, and most electrical codes such as the National Electric Code (NEC®) require ground fault protection for industrial systems. Littelfuse ground-fault relays are uniquely suited for use on systems with significant harmonic content, with microprocessor-based DFT-filtering technology. </p> <p>Selectable DFT filtering and peak detection algorithms are available to allow excellent filtering for both fixed-frequency and variable- frequency applications, providing sensitive ground fault protection without false tripping. By being able to detect electrical problems in the early stages, ground fault relays can significantly reduce damage and speed up the repair process. Sensitive ground fault relays with advanced filtering capabilities will detect the breakdown in insulation caused by moisture, vibration, chemicals, and dust. Ground fault relays are commonly used in industrial and manufacturing facilities on generators, transformers, switchgear, motor control centers (MCC), panel boards, variable frequency motor drives , welders and heating cables. Littelfuse ground-fault relays can be surface and DIN-rail mounted, or panel mounted with available adapters. When replacing other ground-fault relays, existing current transformers (CTs) can be used in many cases, greatly simplifying the installation. Adapter plates are also available for many retrofits, minimizing the amount of work required to complete the upgrade. </p> <p><a href="/products/relays-contactors-transformers">See the models available here.</a></p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab2" aria-labelledby="react-aria-7-tab-tab2" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Resistance Grounding</h3> <p>Resistance Grounding solves the problems commonly associated with both ungrounded systems and solidly grounded systems. Resistance grounding protects a system against transient overvoltages caused by arcing ground faults and it provides a method to locate ground faults. The name is derived from the addition of a resistor between the system neutral and ground, also called neutral grounding resistor or NGR. The specifications of the resistor are user determined to achieve a desired ground-fault current, which must be greater than the system capacitive charging current. For systems 2.4 kV and higher, low-resistance grounding systems can be used. Typically in those systems the ground-fault current is 25 A or above and is cleared within 10 s. </p> <p>Resistance grounding eliminates excessive ground-fault damage and single phase Arc-Flash Hazards associated with solidly grounded systems by reducing the ground-fault current to 5 A. Per IEEE Standard 141-1993, Arc-flash hazards are eliminated if the ground-fault current is reduced to 5 A or less. </p> <p>Properly sized resistance grounding systems solve two problems of ungrounded systems—transient overvoltages and difficulty locating ground faults. Resistance grounding systems eliminate transient overvoltages, single phase Arc-Flash hazards, and provide an ability to locate the ground fault. These capabilities reduce unscheduled shutdowns due to electrical faults and equipment damage. The NGR Family of Resistance Grounding Systems include all necessary components to convert or design a resistance- grounded system. Additional ground-fault relays can be installed on feeders to provide selective coordination as well as the ability to locate ground faults. </p> <p><a href="/products/relays-contactors-transformers/protection-relays/resistance-grounding">See the models available here.</a></p> <h3>Monitoring</h3> <p>Supplemental monitors are single function devices that only look at one abnormal condition and either alarm or provide a means to remove electric power. Visual indication can also be used. The purpose of a monitor is to provide an efficient solution to a dedicated problem. Monitors work together with existing protection, such as fuses, circuit breakers, or protection relays to enhance electrical system safety and performance by monitoring its components. The Littelfuse NGR monitors are designed for application specific functionality such as insulation monitoring, ground continuity and resistor monitoring. </p> <p>Ground-check monitors are used to detect problems in equipment ground conductors. Mobile equipment typically has an extra electric wire, sometimes called a pilot wire, routed with the phase and ground conductors. A ground check monitor uses this pilot wire to send a signal down to the equipment to a unique terminating device. The signal then returns on the equipment ground conductor to the monitor. The monitor continuously monitors this loop for open or short circuits, indicating that a problem has occurred. </p> <p>Insulation monitoring addresses the single most common reason for electrical system failure - insulation breakdown. Insulation monitors can be installed at any point in the system to detect a problem with the insulation. The monitor is connected to one phase and injects a dc signal to continuously measure the system’s insulation resistance. The monitor is typically installed on de-energized feeders or motors and is cycled with feeder’s circuit breaker or motor starter. When the circuit breaker is open, the monitor is energized and begins to monitor the de-energized cables and motor windings. In ungrounded systems, the monitor will continuously monitor the insulation resistance to ground regardless whether the system is energized or de-energized. </p> <p>Resistor monitoring are designed to detect a failure in the neutral to ground path, which can lead to electrical hazards electrical hazards. Some examples of failure are stolen wires, loose connections, corrosion and broken resistor elements. The resistor monitor continuously monitors the path from system neutral to ground for a problem. When a problem occurs, the NGR monitor provides an alarm. </p> <p><a href="https://www.littelfuse.com/products/relays-contactors-transformers/protection-relays/resistance-grounding" target="_self"><a href="/products/relays-contactors-transformers/protection-relays/resistance-grounding">See the models available here.</a></a></p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab3" aria-labelledby="react-aria-7-tab-tab3" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Motor Protection</h3> <p>Motor Protection Relays prevent expensive damage to motors caused by overload and overtemperature, overcurrent, jams and undercurrent, high resistance winding faults, current and voltage unbalance, phase loss, phase reverse, heat from non-electric sources, heavy start-ups, motor jogging or excessive operational cycles. Features, such as integrated protection, metering, data logging, and remote communications extend motor life and maximize process efficiency. Overload protection is required by various electrical codes such as the National Electric Code (NEC®) to reduce the chance of electrical hazards and fire caused by problems with the motor or load. Littelfuse Motor Protection relays have a reduced-overcurrent feature that can reduce arc flash hazards during maintenance near energized equipment, allowing for a much safer electrical system. </p> <p>Littelfuse offers a wide variety of products to meet any level of motor protection need. What level of protection is right for you? </p> <p><strong>Good</strong>: A basic level of protection is provided by monitoring the voltage going into the motor. Without protection, faulty conditions can cause motor windings to overheat and burn motor insulation – causing premature motor failure. The Littelfuse MotorSaver models 460 and 201A-AU protect against over/under voltage, phase loss, reverse phase, unbalanced voltage, and rapid cycling. </p> <p><strong>Better</strong>: In addition to all the voltage/phase protection in the good level, you may wish to monitor the load side, log events, and view conditions on a display in real time - ideal for troubleshooting. The Littelfuse MotorSaver model 455 adds a second set of voltage inputs to monitor volatage on the load side of the motor contactor to detect contact failure, keeps history and the past 20 faults, and with the Informer-MS allows wireless viewing of fault codes and real-time voltages per phase, voltage unbalance, and more. </p> <p><strong>Best</strong>: These enhanced overload relays combine all the voltage/phase protection features of the good and better products into an overload relay with on-board display and optional communications. The Littelfuse MotorSaver model 777 delivers underload protection to keep motors from running unloaded, easy programming, and real-time voltage, current readings and fault codes. </p> <p><strong>Awesome</strong>: What’s better than best? Littelfuse has even more advanced motor protection relays that provide awesome protection of expensive motors in critical applications such as mining and oil & gas. The Littelfuse MPS and MPU-32 models provide protection, metering, and data-logging capabilities for three-phase low voltage medium horsepower induction motors. </p> <p>Interested in learning more about our Motor Protection Relays? Trouble-shooting guides, videos, checklist, case studies, and more can be found at <a href="/products/relays-contactors-transformers/protection-relays/motor-pump-protection">Littelfuse.com/MotorProtection</a>.</p> <h3>Pump Protection</h3> <p>Pumps are often exposed to hazardous conditions and situations that can cause severe damage to the pump. Littelfuse PumpSaver products will protect and disable a pump in these situations. PumpSaver products offer a wide variety of controls for both single phase and three phase applications. Among these control options are, intrinsically safe and alternating relays, pump controllers, liquid level controls and seal leak detectors, and power monitors which are all excellent choices for your pump protection needs.</p> <h4>Enhanced Power Monitors</h4> <p>Many pumping applications require advanced power monitoring and control. Littelfuse PumpSaver enhanced power monitors provide all of the protection and features included with an enhanced overload relay and are designed specifically to support low horsepower and/or low speed motor applications. This family of enhanced power monitors provides optimal protection for any type of motor or pump. </p> <h4>Intrinsically Safe Relays</h4> <p>Applying electronic controls in hazardous environments can be difficult. Fortunately, Littelfuse intrinsically safe relays and pump controllers are specifically designed to interface between hazardous and non-hazardous areas. We provide several models of intrinsically safe relays and controllers offering distinct output relay configurations for a variety of systems. </p> <h4>Alternating Relays</h4> <p>Alternating relays are designed to balance the run time between two independent loads, typical in many pumping and compressor applications. By balancing the run times, redundant equipment is equally exercised to provide greater system reliability. </p> <h4>Pump Controller Relays</h4> <p>Multiple-pump applications often require balanced run times and redundancy. Littelfuse SymCom provides pump controllers (both intrinsically safe and non-IS) that are designed to handle multiple pump applications. </p> <h4>Liquid Level Controls & Seal Leak Detectors</h4> <p>Littelfuse liquid level control relays are used to control conductive liquid pumping operations using either floats or conductance probes. They can be used in pump-up or pump-down applications. Our seal leak and leak/temp relays provide protection against seal leaks and over-temperature by monitoring sensors within the pumps and providing early warning or disabling the pumps. </p> <p>Interested in learning more about our pump protection relays? A variety of resources including our fresh water pumping catalog, case studies, application notes, and more can be found at <a href="/products/relays-contactors-transformers/protection-relays/motor-pump-protection">Littelfuse.com/PumpProtection</a>.</p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab4" aria-labelledby="react-aria-7-tab-tab4" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Feeder Protection</h3> <p>Feeder protection relays protect feeder circuits from overcurrents, ground faults (earth faults), phase loss or other detrimental conditions in critical applications and processes. </p> <p>Feeder protection relays provide essential data for predictive and preventative maintenance—extending the life of equipment, enhancing safety and maximizing efficiency. Littelfuse feeder protection relays have a reduced-overcurrent feature that can reduce arc flash hazards during maintenance near energized equipment, allowing for a much safer system. </p> <p>Feeder protection relays are designed to detect faults in an electrical distribution system, extend the life of equipment and improve safety to personnel exposed to such equipment. They provide a high degree of flexibility and can coordinate with other protection devices on the system. Feeder protection relays are used in processing, manufacturing, petroleum, chemical, mining, forestry, water, and wastewater facilities. Modern Feeder Protection relays are an excellent choice for retrofitting obsolete electromechanical relays. </p> <p><a href="/products/relays-contactors-transformers/protection-relays/feeder-protection">See the models available here.</a></p> <h3>Supplemental Monitoring</h3> <p>Supplemental monitors are single function devices that only look at one abnormal condition and either alarm or provide a means to remove electric power. Visual indication can also be used. The purpose of a monitor is to provide an efficient solution to a dedicated problem. Monitors work together with existing protection, such as fuses, circuit breakers, or protection relays to enhance electrical system safety and performance by monitoring its components. The Littelfuse POWR-GARD monitors are designed for application specific functionality such as insulation monitoring, ground continuity and resistor monitoring. </p> <p>Ground-check monitors are used to detect problems in equipment ground conductors. Mobile equipment typically has an extra electric wire, sometimes called a pilot wire, routed with the phase and ground conductors. A ground check monitor uses this pilot wire to send a signal down to the equipment to a unique terminating device. The signal then returns on the equipment ground conductor to the monitor. The monitor continuously monitors this loop for open or short circuits, indicating that a problem has occurred0</p> <p>Insulation monitoring addresses the single most common reason for electrical system failure - insulation breakdown. Insulation monitors can be installed at any point in the system to detect a problem with the insulation. The monitor is connected to one phase and injects a dc signal to continuously measure the system’s insulation resistance. The monitor is typically installed on de-energized feeders or motors and is cycled with feeder’s circuit breaker or motor starter. When the circuit breaker is open, the monitor is energized and begins to monitor the de-energized cables and motor windings. In ungrounded systems, the monitor will continuously monitor the insulation resistance to ground regardless whether the system is energized or de-energized. </p> <p>Resistor monitors are designed to detect a failure in the neutral to ground path, which can lead to electrical hazards electrical hazards. Some examples of failure are stolen wires, loose connections, corrosion, and broken resistor elements. The resistor monitor continuously monitors the path from system neutral to ground for a problem. When a problem occurs, the NGR monitor provides an alarm. </p> <p>The Littelfuse POWR-GARD supplemental monitor line includes the PGM-8134 Ground Continuity Monitor, PGM-8325 Neutral Grounding Monitor and PGR-8600 Insulation Monitor. Littelfuse POWR-GARD also offers a variety of required and optional accessories such as the PGC Series Current Transformers, PGE Series Sensing Resistors and PGB Series Remote Indication Assemblies, Terminations and Adapters.</p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab5" aria-labelledby="react-aria-7-tab-tab5" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><p>Arcing and arc flashes are uncontrolled, intense, luminous discharges of electrical energy that occur when electric current flows across what is normally an insulating medium. The most common cause of arc faults is insulation failure. These failures may be caused by defective or aging insulation material, poor or incorrect maintenance, dust, moisture, vermin, and human error (touching a test probe to the wrong surface or a tool slipping and touching live conductors). Arc-Flash events are dangerous and potentially fatal to personnel. According to OSHA, industrial Arc-Flash events cause about 80% of electrically related accidents and fatalities among qualified electrical workers. Even if personnel injuries are avoided, Arc Flash can destroy equipment, resulting in costly replacement and downtime.</p> <p>Arcing and arc flashes are uncontrolled, intense, luminous discharges of electrical energy…resulting in costly replacement and downtime. The Littelfuse Arc-Flash Relays help you improve safety and reduce equipment downtime in the event of an arc flash. Our relays use reliable light detection to detect an impending arc flash and send a trip signal to the breaker in less than 1 ms to interrupt power before damage occurs. Their simple plug-and-play installation makes them the perfect, cost-effective solution to lowering equipment incident energy (HRC).</p> <p>See the models available here [link to arc flash page] or for additional technical resources including videos, whitepapers, FAQs, guideform specs, arc flash energy reduction calculator, and more go to <a href="/products/relays-contactors-transformers/protection-relays/arc-flash-detection">Littelfuse.com/ArcFlash</a>.</p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab6" aria-labelledby="react-aria-7-tab-tab6" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Flashers and Tower Lighting Controls</h3> <p>The Littelfuse SSAC Flashers include solid-state and relay output controls with fixed and adjustable flash rates. They are used to control inductive, incandescent, or resistive loads in a variety of applications. The Littelfuse SSAC Beacon Flashers and Lamp Monitors have proven their reliability through years of use on communication towers, smoke stacks, cooling towers, tall buildings, bridges, and utility towers. The Lamp Monitors provide remote monitoring of lamps in these tower and obstruction lighting applications.</p> <p><a href="/products/relays-contactors-transformers/single-function-control-relays/flashers-tower-lighting-controls">For more information and product specific data, click here</a>.</p></div></div></div></div></div></div><div role="tabpanel" id="react-aria-7-tabpane-tab7" aria-labelledby="react-aria-7-tab-tab7" class="fade tab-pane"><div class="row m-t-20 tab-content" data-testid="NoDataSourceMsg"><div class="col-md-12 g-col rich-text"><div class="richtext_rich-text-container__lxLMt ic-container" data-section="true" id=""><div class="rich-text-content global-common-container table-responsive ic-content"><div><h3>Time Delay Relays</h3> <p>Littelfuse acquired SSAC in 2014, a timer manufacturing industry leader known for its reliable designs that provide long service lives with low maintenance costs. SSAC has been an industry leader since its inception more than 40 years ago. These reliable designs allow SSAC to back products with an impressive 10-year warranty. </p> <h4>Multifunction</h4> <p>The Littelfuse SSAC versatile multifunction time delay relays give you the option of choosing among functions and time delay ranges to ensure that you receive the perfect timer to fit your needs. Simply select the function and time range you desire on the face of your unit. </p> <a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/multifunction">See the models available here</a>. <p> </p> <h4>Solid State and Relay-Output</h4> <p>The Littelfuse SSAC electromechanical relay-output time delay relays are available with a number of different features, including delay-on-make, delay-on-break, single shot, interval, and recycle. All of our relay-output time delay relays assure isolation between input and output, as well as no voltage drop across output contact. </p> <p>The Littelfuse SSAC solid state time delay relays benefit from featuring no moving parts to arc and wear out over time, giving them a lifespan of up to 100x that of a relay-output timer. In addition, all of our solid state time delay relays are fully encapsulated to protect against shock, vibration, humidity, etc. </p> <p>See the models available by function: </p> <ul> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make">Delay on Make</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-break">Delay on Break</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make-delay-on-break">Delay on Make/Delay on Break</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make-interval">Delay on Make/Interval</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/hvac">HVAC</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/interval">Interval</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/percentage">Percentage</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/recycle">Recycle</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/retrig-single-shot">Retrig Single Shot</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/single-shot">Single Shot</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/alternating">Alternating</a></li> <li><a href="/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/counters">Counters</a></li> 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Ground faults are caused by unintentional contact between an energized phase conductor and ground or equipment frame. The return path of the fault current is through the grounding system and any personnel or equipment that becomes part of that system. Ground faults are frequently the result of insulation breakdown, but can also be caused by other forms of cable damage or human error. It is important to note that damp, wet, and dusty environments require extra diligence in design and maintenance. Since water is conductive, it exposes degradation of insulation and increases the potential for electrical hazards to develop. In fact, studies have indicated that ground faults make up more than 95% of the recorded electrical faults, such as arc flash incidents. \u003c/p\u003e\n\u003cp\u003eGround fault protection relays, Ground fault protection relays are designed to detect phase to ground fault on a electrical system and trip when the electrical current exceeds the trip time setting. By quickly detecting the ground fault and initiating the appropriate response, ground fault relays improve electrical safety for workers and minimize damage to equipment due to electrical faults without affecting the uptime of critical operations. Ground faults are the most common type of fault in an electrical system, and most electrical codes such as the National Electric Code (NEC\u0026reg;) require ground fault protection for industrial systems. Littelfuse ground-fault relays are uniquely suited for use on systems with significant harmonic content, with microprocessor-based DFT-filtering technology. \u003c/p\u003e\n\u003cp\u003eSelectable DFT filtering and peak detection algorithms are available to allow excellent filtering for both fixed-frequency and variable- frequency applications, providing sensitive ground fault protection without false tripping. By being able to detect electrical problems in the early stages, ground fault relays can significantly reduce damage and speed up the repair process. Sensitive ground fault relays with advanced filtering capabilities will detect the breakdown in insulation caused by moisture, vibration, chemicals, and dust. Ground fault relays are commonly used in industrial and manufacturing facilities on generators, transformers, switchgear, motor control centers (MCC), panel boards, variable frequency motor drives , welders and heating cables. Littelfuse ground-fault relays can be surface and DIN-rail mounted, or panel mounted with available adapters. When replacing other ground-fault relays, existing current transformers (CTs) can be used in many cases, greatly simplifying the installation. Adapter plates are also available for many retrofits, minimizing the amount of work required to complete the upgrade. \u003c/p\u003e\n\u003cp\u003e\u003ca href=\"/products/relays-contactors-transformers\"\u003eSee the models available here.\u003c/a\u003e\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"1d9771fb-63fb-40d6-8ea9-bef052485897","componentName":"OneColumnTab","dataSource":"{2C244D50-F167-4ED8-BAA2-4F95842B0101}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Resistance Grounding and Monitoring"}},"placeholders":{"phTabOneColumn":[{"uid":"2666d2b7-9d01-4717-8538-ade945c6b68a","componentName":"RichText","dataSource":"{BE20CE88-4380-4742-81E4-4E8444D1FAC9}","params":{},"fields":{"description":{"value":"\u003ch3\u003eResistance Grounding\u003c/h3\u003e\n\u003cp\u003eResistance Grounding solves the problems commonly associated with both ungrounded systems and solidly grounded systems. Resistance grounding protects a system against transient overvoltages caused by arcing ground faults and it provides a method to locate ground faults. The name is derived from the addition of a resistor between the system neutral and ground, also called neutral grounding resistor or NGR. The specifications of the resistor are user determined to achieve a desired ground-fault current, which must be greater than the system capacitive charging current. For systems 2.4 kV and higher, low-resistance grounding systems can be used. Typically in those systems the ground-fault current is 25 A or above and is cleared within 10 s. \u003c/p\u003e\n\u003cp\u003eResistance grounding eliminates excessive ground-fault damage and single phase Arc-Flash Hazards associated with solidly grounded systems by reducing the ground-fault current to 5 A. Per IEEE Standard 141-1993, Arc-flash hazards are eliminated if the ground-fault current is reduced to 5 A or less. \u003c/p\u003e\n\u003cp\u003eProperly sized resistance grounding systems solve two problems of ungrounded systems\u0026mdash;transient overvoltages and difficulty locating ground faults. Resistance grounding systems eliminate transient overvoltages, single phase Arc-Flash hazards, and provide an ability to locate the ground fault. These capabilities reduce unscheduled shutdowns due to electrical faults and equipment damage. The NGR Family of Resistance Grounding Systems include all necessary components to convert or design a resistance- grounded system. Additional ground-fault relays can be installed on feeders to provide selective coordination as well as the ability to locate ground faults. \u003c/p\u003e\n\u003cp\u003e\u003ca href=\"/products/relays-contactors-transformers/protection-relays/resistance-grounding\"\u003eSee the models available here.\u003c/a\u003e\u003c/p\u003e\n\u003ch3\u003eMonitoring\u003c/h3\u003e\n\u003cp\u003eSupplemental monitors are single function devices that only look at one abnormal condition and either alarm or provide a means to remove electric power. Visual indication can also be used. The purpose of a monitor is to provide an efficient solution to a dedicated problem. Monitors work together with existing protection, such as fuses, circuit breakers, or protection relays to enhance electrical system safety and performance by monitoring its components. The Littelfuse NGR monitors are designed for application specific functionality such as insulation monitoring, ground continuity and resistor monitoring. \u003c/p\u003e\n\u003cp\u003eGround-check monitors are used to detect problems in equipment ground conductors. Mobile equipment typically has an extra electric wire, sometimes called a pilot wire, routed with the phase and ground conductors. A ground check monitor uses this pilot wire to send a signal down to the equipment to a unique terminating device. The signal then returns on the equipment ground conductor to the monitor. The monitor continuously monitors this loop for open or short circuits, indicating that a problem has occurred. \u003c/p\u003e\n\u003cp\u003eInsulation monitoring addresses the single most common reason for electrical system failure - insulation breakdown. Insulation monitors can be installed at any point in the system to detect a problem with the insulation. The monitor is connected to one phase and injects a dc signal to continuously measure the system\u0026rsquo;s insulation resistance. The monitor is typically installed on de-energized feeders or motors and is cycled with feeder\u0026rsquo;s circuit breaker or motor starter. When the circuit breaker is open, the monitor is energized and begins to monitor the de-energized cables and motor windings. In ungrounded systems, the monitor will continuously monitor the insulation resistance to ground regardless whether the system is energized or de-energized. \u003c/p\u003e\n\u003cp\u003eResistor monitoring are designed to detect a failure in the neutral to ground path, which can lead to electrical hazards electrical hazards. Some examples of failure are stolen wires, loose connections, corrosion and broken resistor elements. The resistor monitor continuously monitors the path from system neutral to ground for a problem. When a problem occurs, the NGR monitor provides an alarm. \u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://www.littelfuse.com/products/relays-contactors-transformers/protection-relays/resistance-grounding\" target=\"_self\"\u003e\u003ca href=\"/products/relays-contactors-transformers/protection-relays/resistance-grounding\"\u003eSee the models available here.\u003c/a\u003e\u003c/a\u003e\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"4b2326ca-db20-4083-88ba-d105eb3ee384","componentName":"OneColumnTab","dataSource":"{65DA928F-EBD6-4614-96F7-5F3E70287BF1}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Motor Protection and Pump Protection"}},"placeholders":{"phTabOneColumn":[{"uid":"1d85d99a-9a51-46c0-822d-7c5d0a1cb17c","componentName":"RichText","dataSource":"{4BE06515-3C23-4DEA-BE79-CDC0B648404A}","params":{},"fields":{"description":{"value":"\u003ch3\u003eMotor Protection\u003c/h3\u003e\n\u003cp\u003eMotor Protection Relays prevent expensive damage to motors caused by overload and overtemperature, overcurrent, jams and undercurrent, high resistance winding faults, current and voltage unbalance, phase loss, phase reverse, heat from non-electric sources, heavy start-ups, motor jogging or excessive operational cycles. Features, such as integrated protection, metering, data logging, and remote communications extend motor life and maximize process efficiency. Overload protection is required by various electrical codes such as the National Electric Code (NEC\u0026reg;) to reduce the chance of electrical hazards and fire caused by problems with the motor or load. Littelfuse Motor Protection relays have a reduced-overcurrent feature that can reduce arc flash hazards during maintenance near energized equipment, allowing for a much safer electrical system. \u003c/p\u003e\n\u003cp\u003eLittelfuse offers a wide variety of products to meet any level of motor protection need. What level of protection is right for you? \u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood\u003c/strong\u003e: A basic level of protection is provided by monitoring the voltage going into the motor. Without protection, faulty conditions can cause motor windings to overheat and burn motor insulation \u0026ndash; causing premature motor failure. The Littelfuse MotorSaver models 460 and 201A-AU protect against over/under voltage, phase loss, reverse phase, unbalanced voltage, and rapid cycling. \u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eBetter\u003c/strong\u003e: In addition to all the voltage/phase protection in the good level, you may wish to monitor the load side, log events, and view conditions on a display in real time - ideal for troubleshooting. The Littelfuse MotorSaver model 455 adds a second set of voltage inputs to monitor volatage on the load side of the motor contactor to detect contact failure, keeps history and the past 20 faults, and with the Informer-MS allows wireless viewing of fault codes and real-time voltages per phase, voltage unbalance, and more. \u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest\u003c/strong\u003e: These enhanced overload relays combine all the voltage/phase protection features of the good and better products into an overload relay with on-board display and optional communications. The Littelfuse MotorSaver model 777 delivers underload protection to keep motors from running unloaded, easy programming, and real-time voltage, current readings and fault codes. \u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAwesome\u003c/strong\u003e: What\u0026rsquo;s better than best? Littelfuse has even more advanced motor protection relays that provide awesome protection of expensive motors in critical applications such as mining and oil \u0026amp; gas. The Littelfuse MPS and MPU-32 models provide protection, metering, and data-logging capabilities for three-phase low voltage medium horsepower induction motors. \u003c/p\u003e\n\u003cp\u003eInterested in learning more about our Motor Protection Relays? Trouble-shooting guides, videos, checklist, case studies, and more can be found at \u003ca href=\"/products/relays-contactors-transformers/protection-relays/motor-pump-protection\"\u003eLittelfuse.com/MotorProtection\u003c/a\u003e.\u003c/p\u003e\n\u003ch3\u003ePump Protection\u003c/h3\u003e\n\u003cp\u003ePumps are often exposed to hazardous conditions and situations that can cause severe damage to the pump. Littelfuse PumpSaver products will protect and disable a pump in these situations. PumpSaver products offer a wide variety of controls for both single phase and three phase applications. Among these control options are, intrinsically safe and alternating relays, pump controllers, liquid level controls and seal leak detectors, and power monitors which are all excellent choices for your pump protection needs.\u003c/p\u003e\n\u003ch4\u003eEnhanced Power Monitors\u003c/h4\u003e\n\u003cp\u003eMany pumping applications require advanced power monitoring and control. Littelfuse PumpSaver enhanced power monitors provide all of the protection and features included with an enhanced overload relay and are designed specifically to support low horsepower and/or low speed motor applications. This family of enhanced power monitors provides optimal protection for any type of motor or pump. \u003c/p\u003e\n\u003ch4\u003eIntrinsically Safe Relays\u003c/h4\u003e\n\u003cp\u003eApplying electronic controls in hazardous environments can be difficult. Fortunately, Littelfuse intrinsically safe relays and pump controllers are specifically designed to interface between hazardous and non-hazardous areas. We provide several models of intrinsically safe relays and controllers offering distinct output relay configurations for a variety of systems. \u003c/p\u003e\n\u003ch4\u003eAlternating Relays\u003c/h4\u003e\n\u003cp\u003eAlternating relays are designed to balance the run time between two independent loads, typical in many pumping and compressor applications. By balancing the run times, redundant equipment is equally exercised to provide greater system reliability. \u003c/p\u003e\n\u003ch4\u003ePump Controller Relays\u003c/h4\u003e\n\u003cp\u003eMultiple-pump applications often require balanced run times and redundancy. Littelfuse SymCom provides pump controllers (both intrinsically safe and non-IS) that are designed to handle multiple pump applications. \u003c/p\u003e\n\u003ch4\u003eLiquid Level Controls \u0026amp; Seal Leak Detectors\u003c/h4\u003e\n\u003cp\u003eLittelfuse liquid level control relays are used to control conductive liquid pumping operations using either floats or conductance probes. They can be used in pump-up or pump-down applications. Our seal leak and leak/temp relays provide protection against seal leaks and over-temperature by monitoring sensors within the pumps and providing early warning or disabling the pumps. \u003c/p\u003e\n\u003cp\u003eInterested in learning more about our pump protection relays? A variety of resources including our fresh water pumping catalog, case studies, application notes, and more can be found at \u003ca href=\"/products/relays-contactors-transformers/protection-relays/motor-pump-protection\"\u003eLittelfuse.com/PumpProtection\u003c/a\u003e.\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"084154e8-49dd-4eca-a351-bf30a184d382","componentName":"OneColumnTab","dataSource":"{985D085D-2990-4573-97E9-0B7594EEF550}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Feeder Protection and Supplemental Monitoring"}},"placeholders":{"phTabOneColumn":[{"uid":"d6411ab4-9627-40c7-8061-920cec7b774c","componentName":"RichText","dataSource":"{D9D637A3-6D47-45F9-B70A-733F17469F3B}","params":{},"fields":{"description":{"value":"\u003ch3\u003eFeeder Protection\u003c/h3\u003e\n\u003cp\u003eFeeder protection relays protect feeder circuits from overcurrents, ground faults (earth faults), phase loss or other detrimental conditions in critical applications and processes. \u003c/p\u003e\n\u003cp\u003eFeeder protection relays provide essential data for predictive and preventative maintenance\u0026mdash;extending the life of equipment, enhancing safety and maximizing efficiency. Littelfuse feeder protection relays have a reduced-overcurrent feature that can reduce arc flash hazards during maintenance near energized equipment, allowing for a much safer system. \u003c/p\u003e\n\u003cp\u003eFeeder protection relays are designed to detect faults in an electrical distribution system, extend the life of equipment and improve safety to personnel exposed to such equipment. They provide a high degree of flexibility and can coordinate with other protection devices on the system. Feeder protection relays are used in processing, manufacturing, petroleum, chemical, mining, forestry, water, and wastewater facilities. Modern Feeder Protection relays are an excellent choice for retrofitting obsolete electromechanical relays. \u003c/p\u003e\n\u003cp\u003e\u003ca href=\"/products/relays-contactors-transformers/protection-relays/feeder-protection\"\u003eSee the models available here.\u003c/a\u003e\u003c/p\u003e\n\u003ch3\u003eSupplemental Monitoring\u003c/h3\u003e\n\u003cp\u003eSupplemental monitors are single function devices that only look at one abnormal condition and either alarm or provide a means to remove electric power. Visual indication can also be used. The purpose of a monitor is to provide an efficient solution to a dedicated problem. Monitors work together with existing protection, such as fuses, circuit breakers, or protection relays to enhance electrical system safety and performance by monitoring its components. The Littelfuse POWR-GARD monitors are designed for application specific functionality such as insulation monitoring, ground continuity and resistor monitoring. \u003c/p\u003e\n\u003cp\u003eGround-check monitors are used to detect problems in equipment ground conductors. Mobile equipment typically has an extra electric wire, sometimes called a pilot wire, routed with the phase and ground conductors. A ground check monitor uses this pilot wire to send a signal down to the equipment to a unique terminating device. The signal then returns on the equipment ground conductor to the monitor. The monitor continuously monitors this loop for open or short circuits, indicating that a problem has occurred0\u003c/p\u003e\n\u003cp\u003eInsulation monitoring addresses the single most common reason for electrical system failure - insulation breakdown. Insulation monitors can be installed at any point in the system to detect a problem with the insulation. The monitor is connected to one phase and injects a dc signal to continuously measure the system\u0026rsquo;s insulation resistance. The monitor is typically installed on de-energized feeders or motors and is cycled with feeder\u0026rsquo;s circuit breaker or motor starter. When the circuit breaker is open, the monitor is energized and begins to monitor the de-energized cables and motor windings. In ungrounded systems, the monitor will continuously monitor the insulation resistance to ground regardless whether the system is energized or de-energized. \u003c/p\u003e\n\u003cp\u003eResistor monitors are designed to detect a failure in the neutral to ground path, which can lead to electrical hazards electrical hazards. Some examples of failure are stolen wires, loose connections, corrosion, and broken resistor elements. The resistor monitor continuously monitors the path from system neutral to ground for a problem. When a problem occurs, the NGR monitor provides an alarm. \u003c/p\u003e\n\u003cp\u003eThe Littelfuse POWR-GARD supplemental monitor line includes the PGM-8134 Ground Continuity Monitor, PGM-8325 Neutral Grounding Monitor and PGR-8600 Insulation Monitor. Littelfuse POWR-GARD also offers a variety of required and optional accessories such as the PGC Series Current Transformers, PGE Series Sensing Resistors and PGB Series Remote Indication Assemblies, Terminations and Adapters.\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"e5bbfca3-9da2-4f07-bb9b-b9123f96430f","componentName":"OneColumnTab","dataSource":"{5F29FEB4-3B2F-41AE-8A42-8661F2D3C975}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Arc Flash Protection"}},"placeholders":{"phTabOneColumn":[{"uid":"b447f9ab-7f63-4a3c-bd3d-155edf5d1c59","componentName":"RichText","dataSource":"{9A73960B-F393-479A-BA72-801DC929087D}","params":{},"fields":{"description":{"value":"\u003cp\u003eArcing and arc flashes are uncontrolled, intense, luminous discharges of electrical energy that occur when electric current flows across what is normally an insulating medium. The most common cause of arc faults is insulation failure. These failures may be caused by defective or aging insulation material, poor or incorrect maintenance, dust, moisture, vermin, and human error (touching a test probe to the wrong surface or a tool slipping and touching live conductors). Arc-Flash events are dangerous and potentially fatal to personnel. According to OSHA, industrial Arc-Flash events cause about 80% of electrically related accidents and fatalities among qualified electrical workers. Even if personnel injuries are avoided, Arc Flash can destroy equipment, resulting in costly replacement and downtime.\u003c/p\u003e\n\u003cp\u003eArcing and arc flashes are uncontrolled, intense, luminous discharges of electrical energy\u0026hellip;resulting in costly replacement and downtime. The Littelfuse Arc-Flash Relays help you improve safety and reduce equipment downtime in the event of an arc flash. Our relays use reliable light detection to detect an impending arc flash and send a trip signal to the breaker in less than 1 ms to interrupt power before damage occurs. Their simple plug-and-play installation makes them the perfect, cost-effective solution to lowering equipment incident energy (HRC).\u003c/p\u003e\n\u003cp\u003eSee the models available here [link to arc flash page] or for additional technical resources including videos, whitepapers, FAQs, guideform specs, arc flash energy reduction calculator, and more go to \u003ca href=\"/products/relays-contactors-transformers/protection-relays/arc-flash-detection\"\u003eLittelfuse.com/ArcFlash\u003c/a\u003e.\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"49be2eb4-96a3-4837-96d0-3dca943325fb","componentName":"OneColumnTab","dataSource":"{0ACB87CE-7E97-4AD1-B17F-97CCC7676A42}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Flashers and Tower Light Controls"}},"placeholders":{"phTabOneColumn":[{"uid":"b4a73ea3-c9a4-447a-956f-25c3b96fa50e","componentName":"RichText","dataSource":"{331019B7-06C3-4DFF-8A81-ACCD47D7135F}","params":{},"fields":{"description":{"value":"\u003ch3\u003eFlashers and Tower Lighting Controls\u003c/h3\u003e\n\u003cp\u003eThe Littelfuse SSAC Flashers include solid-state and relay output controls with fixed and adjustable flash rates. They are used to control inductive, incandescent, or resistive loads in a variety of applications. The Littelfuse SSAC Beacon Flashers and Lamp Monitors have proven their reliability through years of use on communication towers, smoke stacks, cooling towers, tall buildings, bridges, and utility towers. The Lamp Monitors provide remote monitoring of lamps in these tower and obstruction lighting applications.\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/flashers-tower-lighting-controls\"\u003eFor more information and product specific data, click here\u003c/a\u003e.\u003c/p\u003e"},"title":{"value":""}}}]}},{"uid":"e3dd470d-f9b6-45d6-a05e-2cdafe0d4a81","componentName":"OneColumnTab","dataSource":"{9D17A054-C75E-486A-96D8-194C5DE3AD09}","params":{},"fields":{"tabHeading":{"value":""},"tabTitle":{"value":"Time-Delay Relays"}},"placeholders":{"phTabOneColumn":[{"uid":"1fe35bc4-be4f-4a1e-9c23-653996ef19d8","componentName":"RichText","dataSource":"{EF59ED68-E90F-4F4E-8D95-F20D63E63A2D}","params":{},"fields":{"description":{"value":"\u003ch3\u003eTime Delay Relays\u003c/h3\u003e\n\u003cp\u003eLittelfuse acquired SSAC in 2014, a timer manufacturing industry leader known for its reliable designs that provide long service lives with low maintenance costs. SSAC has been an industry leader since its inception more than 40 years ago. These reliable designs allow SSAC to back products with an impressive 10-year warranty. \u003c/p\u003e\n\u003ch4\u003eMultifunction\u003c/h4\u003e\n\u003cp\u003eThe Littelfuse SSAC versatile multifunction time delay relays give you the option of choosing among functions and time delay ranges to ensure that you receive the perfect timer to fit your needs. Simply select the function and time range you desire on the face of your unit. \u003c/p\u003e\n\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/multifunction\"\u003eSee the models available here\u003c/a\u003e.\n\u003cp\u003e\u0026nbsp;\u003c/p\u003e\n\u003ch4\u003eSolid State and Relay-Output\u003c/h4\u003e\n\u003cp\u003eThe Littelfuse SSAC electromechanical relay-output time delay relays are available with a number of different features, including delay-on-make, delay-on-break, single shot, interval, and recycle. All of our relay-output time delay relays assure isolation between input and output, as well as no voltage drop across output contact. \u003c/p\u003e\n\u003cp\u003eThe Littelfuse SSAC solid state time delay relays benefit from featuring no moving parts to arc and wear out over time, giving them a lifespan of up to 100x that of a relay-output timer. In addition, all of our solid state time delay relays are fully encapsulated to protect against shock, vibration, humidity, etc. \u003c/p\u003e\n\u003cp\u003eSee the models available by function: \u003c/p\u003e\n\u003cul\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make\"\u003eDelay on Make\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-break\"\u003eDelay on Break\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make-delay-on-break\"\u003eDelay on Make/Delay on Break\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/delay-on-make-interval\"\u003eDelay on Make/Interval\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/hvac\"\u003eHVAC\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/interval\"\u003eInterval\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/percentage\"\u003ePercentage\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/recycle\"\u003eRecycle\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/retrig-single-shot\"\u003eRetrig Single Shot\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/single-shot\"\u003eSingle Shot\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/alternating\"\u003eAlternating\u003c/a\u003e\u003c/li\u003e\n \u003cli\u003e\u003ca href=\"/products/relays-contactors-transformers/single-function-control-relays/time-delay-relays/counters\"\u003eCounters\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e"},"title":{"value":""}}}]}}]}}],"jss-footer":[]}}}}}},"__N_SSP":true},"page":"/[[...path]]","query":{"path":["products","relays-contactors-transformers","protection-relays"]},"buildId":"yqdsV5pHTZ499Bhy7p9Ri","assetPrefix":"https://www.littelfuse.com","isFallback":false,"gssp":true,"locale":"en","locales":["en"],"defaultLocale":"en","scriptLoader":[]}</script></body></html>