{"product_id":"littelfuse-klsr200-200a-class-rk1-fast-acting-fuse-knife-blade-600vac-300vdc","title":"Littelfuse KLSR200 200A Class RK1 Fast-Acting Fuse – Knife-Blade – 600VAC\/300VDC","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:b225eafd-f234-4f44-87f5-16ec08e5650e-54\" 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-WEB:b225eafd-f234-4f44-87f5-16ec08e5650e-54\" data-turn-id-container=\"request-WEB:b225eafd-f234-4f44-87f5-16ec08e5650e-54\" data-testid=\"conversation-turn-28\" 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=\"1b0b5c3c-7bde-44a3-aade-a30ee0a72f02\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" 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=\"86\" data-end=\"604\"\u003eThe Littelfuse KLSR200 is a Class RK1 fast-acting current-limiting fuse designed for reliable short-circuit protection in industrial and commercial power systems. Built with a single-element silver link construction, it provides rapid response to overcurrent conditions. This fuse is commonly used for protecting surge-sensitive equipment such as variable speed drives, rectifiers, and other electronic loads, though it may require oversizing in inductive applications to avoid nuisance operation from inrush currents.\u003c\/p\u003e\n\u003ch3 data-section-id=\"yc43s8\" data-start=\"606\" data-end=\"628\"\u003eVoltage and Rating\u003c\/h3\u003e\n\u003cul data-start=\"629\" data-end=\"778\"\u003e\n\u003cli data-section-id=\"nqik69\" data-start=\"629\" data-end=\"655\"\u003eCurrent Rating: 200 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"10uce35\" data-start=\"656\" data-end=\"686\"\u003eVoltage Rating: 600 Volts AC\u003c\/li\u003e\n\u003cli data-section-id=\"9fd05y\" data-start=\"687\" data-end=\"720\"\u003eDC Voltage Rating: 300 Volts DC\u003c\/li\u003e\n\u003cli data-section-id=\"1cuenj9\" data-start=\"721\" data-end=\"778\"\u003eInterrupting Rating: 200 kA AIR (up to 20 kA @ 300 VDC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"780\" data-end=\"802\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"803\" data-end=\"1011\"\u003e\n\u003cli data-section-id=\"wijt83\" data-start=\"803\" data-end=\"831\"\u003eFuse Type: Fast-Acting (F)\u003c\/li\u003e\n\u003cli data-section-id=\"1unc7hb\" data-start=\"832\" data-end=\"855\"\u003eFuse Class: Class RK1\u003c\/li\u003e\n\u003cli data-section-id=\"k4fsuj\" data-start=\"856\" data-end=\"884\"\u003eMounting Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"b0m8sv\" data-start=\"885\" data-end=\"899\"\u003eSeries: KLSR\u003c\/li\u003e\n\u003cli data-section-id=\"1kphyi2\" data-start=\"900\" data-end=\"937\"\u003eFamily Style: Current Limiting Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"17qmmtf\" data-start=\"938\" data-end=\"1011\"\u003eApplication: Short-circuit protection for industrial electrical systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"1013\" data-end=\"1041\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"1042\" data-end=\"1355\"\u003e\n\u003cli data-section-id=\"qiwjk0\" data-start=\"1042\" data-end=\"1079\"\u003eOpening Characteristic: Fast-Acting\u003c\/li\u003e\n\u003cli data-section-id=\"hdskf5\" data-start=\"1080\" data-end=\"1103\"\u003eCurrent Limiting: Yes\u003c\/li\u003e\n\u003cli data-section-id=\"1izn0e4\" data-start=\"1104\" data-end=\"1138\"\u003eInterrupt Amperage: 200,000 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1892vgj\" data-start=\"1139\" data-end=\"1188\"\u003eConstruction: Single-element silver link design\u003c\/li\u003e\n\u003cli data-section-id=\"5kzgux\" data-start=\"1189\" data-end=\"1265\"\u003eSuitable For: Variable speed drives, rectifiers, surge-sensitive equipment\u003c\/li\u003e\n\u003cli data-section-id=\"xst0r1\" data-start=\"1266\" data-end=\"1355\"\u003eSafety Rating: High interrupting capacity reduces need for extensive fault calculations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"1357\" data-end=\"1373\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"1374\" data-end=\"1460\"\u003e\n\u003cli data-section-id=\"1xtv818\" data-start=\"1374\" data-end=\"1400\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"gb0asq\" data-start=\"1401\" data-end=\"1424\"\u003eModel Number: KLSR200\u003c\/li\u003e\n\u003cli data-section-id=\"15kmg9l\" data-start=\"1425\" data-end=\"1460\"\u003eSeries: KLSR RK1 Fast-Acting Fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"1462\" data-end=\"1474\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"1475\" data-end=\"1779\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"284nto\" data-start=\"1475\" data-end=\"1543\"\u003eExtremely current-limiting performance for fast fault interruption\u003c\/li\u003e\n\u003cli data-section-id=\"69ohdb\" data-start=\"1544\" data-end=\"1602\"\u003eReliable protection up to 200 kA available fault current\u003c\/li\u003e\n\u003cli data-section-id=\"1xnpip7\" data-start=\"1603\" data-end=\"1662\"\u003eHelps minimize equipment damage from short-circuit energy\u003c\/li\u003e\n\u003cli data-section-id=\"fnvk6w\" data-start=\"1663\" data-end=\"1709\"\u003eKnife-blade design for standard fuse holders\u003c\/li\u003e\n\u003cli data-section-id=\"1emlk2f\" data-start=\"1710\" data-end=\"1779\" data-is-last-node=\"\"\u003eIdeal for industrial distribution and electronic protection systems\u003c\/li\u003e\n\u003c\/ul\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":48478312497401,"sku":"KLSR200","price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_2HwwJ3TthsG1222F_2401565f-249c-49d0-b744-67d253008459.jpg?v=1780434536","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-klsr200-200a-class-rk1-fast-acting-fuse-knife-blade-600vac-300vdc","provider":"My Circuit Breakers","version":"1.0","type":"link"}