{"product_id":"littelfuse-kllu700-class-l-fuse-700a-600v-time-delay-fuse","title":"Littelfuse KLLU700 Class L Fuse – 700A – 600V Time-Delay Fuse","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a11c9d2-fa5c-83e8-934f-b46429aa1619-34\" 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-b46429aa1619-34\" data-turn-id-container=\"request-6a11c9d2-fa5c-83e8-934f-b46429aa1619-34\" data-testid=\"conversation-turn-424\" 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=\"e21eb81a-9b91-4e69-a1d7-316a5c50e514\" 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=\"88\" data-end=\"625\"\u003eThe Littelfuse KLLU700 is a 700 Amp Class L time-delay fuse designed for industrial and commercial power distribution systems requiring reliable overload and short-circuit protection. Part of the KLLU series, this UL Listed fuse provides a cost-effective alternative to the POWR-PRO™ KLPC series while meeting or exceeding all UL requirements for Class L fuses. Its time-delay characteristics allow temporary motor starting currents and transformer inrush currents to pass without nuisance operation, helping maintain system reliability.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"632\" data-end=\"653\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"654\" data-end=\"795\"\u003e\n\u003cli data-section-id=\"zr916s\" data-start=\"654\" data-end=\"682\"\u003eCurrent Rating: 700 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s2lsbc\" data-start=\"683\" data-end=\"714\"\u003eMaximum AC Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"3p3ayl\" data-start=\"715\" data-end=\"746\"\u003eMaximum DC Voltage: 300 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"gjiobx\" data-start=\"747\" data-end=\"795\"\u003eInterrupting Rating:\n\u003cul data-start=\"772\" data-end=\"795\"\u003e\n\u003cli data-section-id=\"1263bk\" data-start=\"772\" data-end=\"795\"\u003e200 kA AC @ 600 VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"802\" data-end=\"824\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"825\" data-end=\"1042\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"825\" data-end=\"853\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"73c78r\" data-start=\"854\" data-end=\"881\"\u003eCatalog Number: KLLU700\u003c\/li\u003e\n\u003cli data-section-id=\"1shf2rb\" data-start=\"882\" data-end=\"898\"\u003eSeries: KLLU\u003c\/li\u003e\n\u003cli data-section-id=\"1uncqjf\" data-start=\"899\" data-end=\"922\"\u003eFuse Class: Class L\u003c\/li\u003e\n\u003cli data-section-id=\"113ctc8\" data-start=\"923\" data-end=\"953\"\u003eConstruction Type: Bolt-In\u003c\/li\u003e\n\u003cli data-section-id=\"1383xbz\" data-start=\"954\" data-end=\"989\"\u003eFuse Type: Time-Delay (Slo-Blo)\u003c\/li\u003e\n\u003cli data-section-id=\"fnxc28\" data-start=\"990\" data-end=\"1023\"\u003eFamily: Current-Limiting Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"q4hlgv\" data-start=\"1024\" data-end=\"1042\"\u003eIndicating: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1049\" data-end=\"1079\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1080\" data-end=\"1582\"\u003e\n\u003cli data-section-id=\"1dkifmp\" data-start=\"1080\" data-end=\"1137\"\u003eMinimum 10-second time delay at 500% of rated current\u003c\/li\u003e\n\u003cli data-section-id=\"7kks75\" data-start=\"1138\" data-end=\"1207\"\u003eAccommodates motor starting currents and transformer inrush loads\u003c\/li\u003e\n\u003cli data-section-id=\"11rkhw3\" data-start=\"1208\" data-end=\"1289\"\u003eCurrent-limiting design reduces short-circuit damage to equipment and systems\u003c\/li\u003e\n\u003cli data-section-id=\"qpe1pm\" data-start=\"1290\" data-end=\"1357\"\u003eHigh 200 kA interrupting capacity for superior fault protection\u003c\/li\u003e\n\u003cli data-section-id=\"1byi0vc\" data-start=\"1358\" data-end=\"1433\"\u003eProtects branch circuit conductors, motor control equipment, and motors\u003c\/li\u003e\n\u003cli data-section-id=\"7wfktw\" data-start=\"1434\" data-end=\"1517\"\u003eSelective coordination with other Class L and Littelfuse current-limiting fuses\u003c\/li\u003e\n\u003cli data-section-id=\"rb4rdi\" data-start=\"1518\" data-end=\"1582\"\u003eHelps reduce downtime by isolating only the affected circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1589\" data-end=\"1614\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1615\" data-end=\"1872\"\u003e\n\u003cli data-section-id=\"u16vvj\" data-start=\"1615\" data-end=\"1663\"\u003eHeavy-duty bolt-in Class L fuse construction\u003c\/li\u003e\n\u003cli data-section-id=\"wcjcwv\" data-start=\"1664\" data-end=\"1722\"\u003eUL Listed and compliant with Class L fuse requirements\u003c\/li\u003e\n\u003cli data-section-id=\"12q6180\" data-start=\"1723\" data-end=\"1777\"\u003eIndustrial-grade design for demanding applications\u003c\/li\u003e\n\u003cli data-section-id=\"turfpy\" data-start=\"1778\" data-end=\"1839\"\u003eCost-effective alternative to POWR-PRO™ KLPC series fuses\u003c\/li\u003e\n\u003cli data-section-id=\"n1bgx2\" data-start=\"1840\" data-end=\"1872\"\u003eNon-indicating configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1879\" data-end=\"1902\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1903\" data-end=\"2339\"\u003e\n\u003cli data-section-id=\"fmwtsp\" data-start=\"1903\" data-end=\"1985\"\u003eCurrent-limiting protection minimizes equipment damage during fault conditions\u003c\/li\u003e\n\u003cli data-section-id=\"tur1rw\" data-start=\"1986\" data-end=\"2045\"\u003eEasily coordinated with other system protective devices\u003c\/li\u003e\n\u003cli data-section-id=\"1q37bhy\" data-start=\"2046\" data-end=\"2124\"\u003e200 kA AC interrupting rating meets current and future system requirements\u003c\/li\u003e\n\u003cli data-section-id=\"18xd2ir\" data-start=\"2125\" data-end=\"2199\"\u003eTime-current characteristics closely match many circuit breaker curves\u003c\/li\u003e\n\u003cli data-section-id=\"164itxx\" data-start=\"2200\" data-end=\"2288\"\u003eSuitable for a broad range of breaker settings compared to fast-acting Class L fuses\u003c\/li\u003e\n\u003cli data-section-id=\"1ce1w0j\" data-start=\"2289\" data-end=\"2339\"\u003eImproves equipment life and system reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"2346\" data-end=\"2374\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"2375\" data-end=\"2565\"\u003e\n\u003cli data-section-id=\"hminvj\" data-start=\"2375\" data-end=\"2403\"\u003eMounting Method: Bolt-In\u003c\/li\u003e\n\u003cli data-section-id=\"kq1c21\" data-start=\"2404\" data-end=\"2478\"\u003eCompatible with Class L fuse clips, fuse blocks, and mounting hardware\u003c\/li\u003e\n\u003cli data-section-id=\"1ix6pko\" data-start=\"2479\" data-end=\"2565\"\u003eSuitable for switchboards, switchgear, distribution equipment, and feeder circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"2572\" data-end=\"2588\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"2589\" data-end=\"2845\"\u003e\n\u003cli data-section-id=\"8xlv6l\" data-start=\"2589\" data-end=\"2616\"\u003eMain service protection\u003c\/li\u003e\n\u003cli data-section-id=\"ur0r8t\" data-start=\"2617\" data-end=\"2646\"\u003eFeeder circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"hcon8e\" data-start=\"2647\" data-end=\"2671\"\u003eLarge motor circuits\u003c\/li\u003e\n\u003cli data-section-id=\"fknz5c\" data-start=\"2672\" data-end=\"2698\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"1j39mqk\" data-start=\"2699\" data-end=\"2741\"\u003eIndustrial switchgear and switchboards\u003c\/li\u003e\n\u003cli data-section-id=\"143eonf\" data-start=\"2742\" data-end=\"2798\"\u003eCommercial and industrial power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"lqiu41\" data-start=\"2799\" data-end=\"2845\"\u003eSelectively coordinated electrical systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"2852\" data-end=\"2868\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"2869\" data-end=\"3051\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"2869\" data-end=\"2897\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"73c78r\" data-start=\"2898\" data-end=\"2925\"\u003eCatalog Number: KLLU700\u003c\/li\u003e\n\u003cli data-section-id=\"j7i9rs\" data-start=\"2926\" data-end=\"2976\"\u003eProduct Type: Time-Delay Current-Limiting Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"1shf2rb\" data-start=\"2977\" data-end=\"2993\"\u003eSeries: KLLU\u003c\/li\u003e\n\u003cli data-section-id=\"1uncqjf\" data-start=\"2994\" data-end=\"3017\"\u003eFuse Class: Class L\u003c\/li\u003e\n\u003cli data-section-id=\"fnxc28\" data-start=\"3018\" data-end=\"3051\"\u003eFamily: Current-Limiting Fuse\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=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\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":48478086103289,"sku":"KLLU700","price":652.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_6e1GAUu9E3312KYV_2f70a883-3668-4cab-9e50-e06e61eb5d75.jpg?v=1780426043","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-kllu700-class-l-fuse-700a-600v-time-delay-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}