{"product_id":"littelfuse-jlls225-class-t-fuse-225a-600v-fast-acting-current-limiting-fuse","title":"Littelfuse JLLS225 Class T Fuse – 225A – 600V Fast-Acting Current-Limiting Fuse","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a11c9d2-fa5c-83e8-934f-b46429aa1619-6\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a11c9d2-fa5c-83e8-934f-b46429aa1619-6\" data-turn-id-container=\"request-6a11c9d2-fa5c-83e8-934f-b46429aa1619-6\" data-testid=\"conversation-turn-368\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"04acc79a-806e-40e6-aa88-08e28b39d49f\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"106\" data-end=\"606\"\u003eThe Littelfuse JLLS225 is a 225 Amp Class T fast-acting fuse engineered for superior protection in industrial and commercial electrical distribution systems. Part of the JLLS series, this current-limiting fuse provides extremely fast fault interruption to reduce let-through energy and protect electrical equipment from damaging short-circuit currents. Its compact knife-blade\/bolt-in construction makes it ideal for applications requiring high interrupting capacity and space-efficient installation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"613\" data-end=\"634\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"635\" data-end=\"793\"\u003e\n\u003cli data-section-id=\"1moow1y\" data-start=\"635\" data-end=\"663\"\u003eCurrent Rating: 225 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s2lsbc\" data-start=\"664\" data-end=\"695\"\u003eMaximum AC Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"3p3ayl\" data-start=\"696\" data-end=\"727\"\u003eMaximum DC Voltage: 300 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"3fy0ud\" data-start=\"728\" data-end=\"793\"\u003eInterrupting Rating:\n\u003cul data-start=\"755\" data-end=\"793\"\u003e\n\u003cli data-section-id=\"5nvs4y\" data-start=\"755\" data-end=\"768\"\u003e200 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"1fmwdnp\" data-start=\"771\" data-end=\"793\"\u003e20 kA DC @ 300 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"800\" data-end=\"822\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"823\" data-end=\"1028\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"823\" data-end=\"851\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"c48z2\" data-start=\"852\" data-end=\"879\"\u003eCatalog Number: JLLS225\u003c\/li\u003e\n\u003cli data-section-id=\"1vptuds\" data-start=\"880\" data-end=\"896\"\u003eSeries: JLLS\u003c\/li\u003e\n\u003cli data-section-id=\"1unc6df\" data-start=\"897\" data-end=\"920\"\u003eFuse Class: Class T\u003c\/li\u003e\n\u003cli data-section-id=\"10wxn8r\" data-start=\"921\" data-end=\"965\"\u003eConstruction Type: Knife-Blade \/ Bolt-In\u003c\/li\u003e\n\u003cli data-section-id=\"12nf2bp\" data-start=\"966\" data-end=\"1009\"\u003eFuse Type: Fast-Acting Current-Limiting\u003c\/li\u003e\n\u003cli data-section-id=\"q4hlgv\" data-start=\"1010\" data-end=\"1028\"\u003eIndicating: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1035\" data-end=\"1065\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1066\" data-end=\"1390\"\u003e\n\u003cli data-section-id=\"sy3zvj\" data-start=\"1066\" data-end=\"1120\"\u003eFast-acting operation for immediate fault clearing\u003c\/li\u003e\n\u003cli data-section-id=\"ch6ovf\" data-start=\"1121\" data-end=\"1189\"\u003eCurrent-limiting design minimizes let-through current and energy\u003c\/li\u003e\n\u003cli data-section-id=\"1va1tnh\" data-start=\"1190\" data-end=\"1239\"\u003eProvides exceptional short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"dv02xz\" data-start=\"1240\" data-end=\"1308\"\u003eHigh interrupting capacity for demanding industrial applications\u003c\/li\u003e\n\u003cli data-section-id=\"1hvhe5z\" data-start=\"1309\" data-end=\"1390\"\u003eHelps protect sensitive electrical and electronic equipment from fault damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1397\" data-end=\"1422\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1423\" data-end=\"1606\"\u003e\n\u003cli data-section-id=\"1ywu2gy\" data-start=\"1423\" data-end=\"1454\"\u003eCompact Class T fuse design\u003c\/li\u003e\n\u003cli data-section-id=\"166gte5\" data-start=\"1455\" data-end=\"1500\"\u003eKnife-blade\/bolt-in terminal construction\u003c\/li\u003e\n\u003cli data-section-id=\"1lrgeqr\" data-start=\"1501\" data-end=\"1538\"\u003eNon-indicating fuse configuration\u003c\/li\u003e\n\u003cli data-section-id=\"c703e9\" data-start=\"1539\" data-end=\"1606\"\u003eIndustrial-duty construction for reliable long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1613\" data-end=\"1641\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1642\" data-end=\"1870\"\u003e\n\u003cli data-section-id=\"scj4g6\" data-start=\"1642\" data-end=\"1701\"\u003eMounting Method: Fuse Block \/ Holder \/ Bolt-In Mounting\u003c\/li\u003e\n\u003cli data-section-id=\"1clzk5o\" data-start=\"1702\" data-end=\"1758\"\u003eCompatible with Class T fuse blocks and fuse holders\u003c\/li\u003e\n\u003cli data-section-id=\"fz17dt\" data-start=\"1759\" data-end=\"1870\"\u003eSuitable for switchboards, panelboards, UPS systems, battery systems, and industrial distribution equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1877\" data-end=\"1893\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1894\" data-end=\"2151\"\u003e\n\u003cli data-section-id=\"n7lx3w\" data-start=\"1894\" data-end=\"1935\"\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"z4icg\" data-start=\"1936\" data-end=\"1970\"\u003eUPS and battery backup systems\u003c\/li\u003e\n\u003cli data-section-id=\"x5ewh3\" data-start=\"1971\" data-end=\"2003\"\u003eSwitchboards and panelboards\u003c\/li\u003e\n\u003cli data-section-id=\"1n6q63g\" data-start=\"2004\" data-end=\"2029\"\u003eMotor control centers\u003c\/li\u003e\n\u003cli data-section-id=\"11fbwcj\" data-start=\"2030\" data-end=\"2087\"\u003eCurrent-limiting feeder and branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"iray4j\" data-start=\"2088\" data-end=\"2151\"\u003eProtection of sensitive electrical and electronic equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"2158\" data-end=\"2174\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"2175\" data-end=\"2324\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"2175\" data-end=\"2203\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"c48z2\" data-start=\"2204\" data-end=\"2231\"\u003eCatalog Number: JLLS225\u003c\/li\u003e\n\u003cli data-section-id=\"1qz3a0e\" data-start=\"2232\" data-end=\"2283\"\u003eProduct Type: Fast-Acting Current-Limiting Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"1vptuds\" data-start=\"2284\" data-end=\"2300\"\u003eSeries: JLLS\u003c\/li\u003e\n\u003cli data-section-id=\"1unc6df\" data-start=\"2301\" data-end=\"2324\"\u003eFuse Class: Class T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48476375843065,"sku":"JLLS225","price":123.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_gPxPI1wCdjQ24IJv.jpg?v=1780409390","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-jlls225-class-t-fuse-225a-600v-fast-acting-current-limiting-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}