{"product_id":"littelfuse-jlln300-class-t-fuse-300a-300v-fast-acting-current-limiting-fuse","title":"Littelfuse JLLN300 Class T Fuse – 300A – 300V Fast-Acting Current-Limiting Fuse","description":"\u003cp data-start=\"106\" data-end=\"576\"\u003eThe Littelfuse JLLN300 is a 300 Amp Class T fast-acting fuse designed for superior protection in industrial and commercial electrical distribution systems. Part of the JLLN series, this current-limiting fuse responds rapidly to fault conditions, reducing let-through energy and minimizing equipment damage. Its compact knife-blade\/bolt-in design makes it ideal for applications requiring high interrupting capacity, fast fault clearing, and space-efficient installation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"583\" data-end=\"604\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"605\" data-end=\"763\"\u003e\n\u003cli data-section-id=\"1432k74\" data-start=\"605\" data-end=\"633\"\u003eCurrent Rating: 300 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1r9g6xp\" data-start=\"634\" data-end=\"665\"\u003eMaximum AC Voltage: 300 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1bhmmrc\" data-start=\"666\" data-end=\"697\"\u003eMaximum DC Voltage: 125 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1hyb0lc\" data-start=\"698\" data-end=\"763\"\u003eInterrupting Rating:\n\u003cul data-start=\"725\" data-end=\"763\"\u003e\n\u003cli data-section-id=\"5nvs4y\" data-start=\"725\" data-end=\"738\"\u003e200 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"oebnhc\" data-start=\"741\" data-end=\"763\"\u003e20 kA DC @ 125 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"770\" data-end=\"792\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"793\" data-end=\"998\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"793\" data-end=\"821\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1l3x2s5\" data-start=\"822\" data-end=\"849\"\u003eCatalog Number: JLLN300\u003c\/li\u003e\n\u003cli data-section-id=\"1vptq8d\" data-start=\"850\" data-end=\"866\"\u003eSeries: JLLN\u003c\/li\u003e\n\u003cli data-section-id=\"1unc6df\" data-start=\"867\" data-end=\"890\"\u003eFuse Class: Class T\u003c\/li\u003e\n\u003cli data-section-id=\"10wxn8r\" data-start=\"891\" data-end=\"935\"\u003eConstruction Type: Knife-Blade \/ Bolt-In\u003c\/li\u003e\n\u003cli data-section-id=\"12nf2bp\" data-start=\"936\" data-end=\"979\"\u003eFuse Type: Fast-Acting Current-Limiting\u003c\/li\u003e\n\u003cli data-section-id=\"q4hlgv\" data-start=\"980\" data-end=\"998\"\u003eIndicating: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1005\" data-end=\"1035\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1036\" data-end=\"1340\"\u003e\n\u003cli data-section-id=\"1a3lwdy\" data-start=\"1036\" data-end=\"1090\"\u003eFast-acting operation for rapid fault interruption\u003c\/li\u003e\n\u003cli data-section-id=\"mhtdtt\" data-start=\"1091\" data-end=\"1160\"\u003eCurrent-limiting design reduces fault energy and equipment stress\u003c\/li\u003e\n\u003cli data-section-id=\"1va1tnh\" data-start=\"1161\" data-end=\"1210\"\u003eProvides exceptional short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"1wi9ks1\" data-start=\"1211\" data-end=\"1274\"\u003eHigh interrupting capacity for demanding electrical systems\u003c\/li\u003e\n\u003cli data-section-id=\"13an3cv\" data-start=\"1275\" data-end=\"1340\"\u003eHelps safeguard sensitive electrical and electronic equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1347\" data-end=\"1372\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1373\" data-end=\"1570\"\u003e\n\u003cli data-section-id=\"1ywu2gy\" data-start=\"1373\" data-end=\"1404\"\u003eCompact Class T fuse design\u003c\/li\u003e\n\u003cli data-section-id=\"166gte5\" data-start=\"1405\" data-end=\"1450\"\u003eKnife-blade\/bolt-in terminal construction\u003c\/li\u003e\n\u003cli data-section-id=\"1lrgeqr\" data-start=\"1451\" data-end=\"1488\"\u003eNon-indicating fuse configuration\u003c\/li\u003e\n\u003cli data-section-id=\"k2npe6\" data-start=\"1489\" data-end=\"1570\"\u003eIndustrial-duty construction for long service life and dependable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1577\" data-end=\"1605\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1606\" data-end=\"1817\"\u003e\n\u003cli data-section-id=\"scj4g6\" data-start=\"1606\" data-end=\"1665\"\u003eMounting Method: Fuse Block \/ Holder \/ Bolt-In Mounting\u003c\/li\u003e\n\u003cli data-section-id=\"1clzk5o\" data-start=\"1666\" data-end=\"1722\"\u003eCompatible with Class T fuse blocks and fuse holders\u003c\/li\u003e\n\u003cli data-section-id=\"10xsyqe\" data-start=\"1723\" data-end=\"1817\"\u003eSuitable for switchboards, panelboards, UPS systems, and industrial distribution equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1824\" data-end=\"1840\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1841\" data-end=\"2098\"\u003e\n\u003cli data-section-id=\"n7lx3w\" data-start=\"1841\" data-end=\"1882\"\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"z4icg\" data-start=\"1883\" data-end=\"1917\"\u003eUPS and battery backup systems\u003c\/li\u003e\n\u003cli data-section-id=\"x5ewh3\" data-start=\"1918\" data-end=\"1950\"\u003eSwitchboards and panelboards\u003c\/li\u003e\n\u003cli data-section-id=\"1n6q63g\" data-start=\"1951\" data-end=\"1976\"\u003eMotor control centers\u003c\/li\u003e\n\u003cli data-section-id=\"11fbwcj\" data-start=\"1977\" data-end=\"2034\"\u003eCurrent-limiting feeder and branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"iray4j\" data-start=\"2035\" data-end=\"2098\"\u003eProtection of sensitive electrical and electronic equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"2105\" data-end=\"2121\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"2122\" data-end=\"2271\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"2122\" data-end=\"2150\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1l3x2s5\" data-start=\"2151\" data-end=\"2178\"\u003eCatalog Number: JLLN300\u003c\/li\u003e\n\u003cli data-section-id=\"1qz3a0e\" data-start=\"2179\" data-end=\"2230\"\u003eProduct Type: Fast-Acting Current-Limiting Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"1vptq8d\" data-start=\"2231\" data-end=\"2247\"\u003eSeries: JLLN\u003c\/li\u003e\n\u003cli data-section-id=\"1unc6df\" data-start=\"2248\" data-end=\"2271\"\u003eFuse Class: Class T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48471809818873,"sku":"JLLN300","price":86.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_YDZJBpQVVWc03MD0.jpg?v=1780347547","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-jlln300-class-t-fuse-300a-300v-fast-acting-current-limiting-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}