{"product_id":"llsrk400id","title":"LLSRK400ID - 400Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eLLSRK400ID - 400Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen critical equipment suddenly stops running, the clock starts ticking. Every minute spent tracking down an electrical problem can mean lost productivity, delayed operations, and frustrated maintenance crews. That's why choosing the right fuse is about more than matching an amperage rating. You want dependable circuit protection, fewer unnecessary interruptions, and a faster way to identify problems when they happen.\u003c\/p\u003e\n\u003cp\u003eThe Littelfuse LLSRK400ID 400A Class RK1 time-delay indicating fuse delivers that combination. Part of the Littelfuse POWR-PRO LLSRK_ID series, this high-capacity industrial fuse protects electrical circuits against overloads and short circuits while making blown-fuse identification much easier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in blown-fuse indicator\u003c\/li\u003e\n\u003cli\u003e400-amp continuous current rating\u003c\/li\u003e\n\u003cli\u003eClass RK1 current-limiting protection\u003c\/li\u003e\n\u003cli\u003eTime-delay operation for temporary current surges\u003c\/li\u003e\n\u003cli\u003eHelps reduce nuisance fuse openings\u003c\/li\u003e\n\u003cli\u003ePrecision-formed short-circuit elements\u003c\/li\u003e\n\u003cli\u003eSolid-state overload section with no moving parts\u003c\/li\u003e\n\u003cli\u003eHigh AC and DC interrupting ratings\u003c\/li\u003e\n\u003cli\u003eFaster identification of opened fuses\u003c\/li\u003e\n\u003cli\u003eHelps simplify electrical troubleshooting\u003c\/li\u003e\n\u003cli\u003eKnife-blade terminal configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Littelfuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e LLSRK400ID\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e LLSRK_ID\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e POWR-PRO Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 400A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 600V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Characteristic:\u003c\/strong\u003e Slo-Blo \/ Time Lag (T) \/ Time Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Style:\u003c\/strong\u003e Knife-Blade\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlown-Fuse Indication:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupting Rating:\u003c\/strong\u003e 200,000A at 600V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional AC Interrupting Rating:\u003c\/strong\u003e 300,000A at 600V AC, subject to applicable manufacturer rating conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A at 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Method:\u003c\/strong\u003e Fuse Block \/ Clip \/ Holder\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssociated Holder Series:\u003c\/strong\u003e LFR60400 Series\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Elements:\u003c\/strong\u003e Precision-Formed\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload Section:\u003c\/strong\u003e Solid-State, No Moving Parts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicator Technology:\u003c\/strong\u003e Littelfuse Indicator™\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Littelfuse LLSRK400ID belongs to the POWR-PRO Class RK1 fuse family and incorporates several design features intended to support electrical protection and dependable operation.\u003c\/p\u003e\n\u003cp\u003eIts construction includes precision-formed short-circuit elements, a solid-state overload section without moving parts, and Littelfuse's patented blown-fuse indicating technology.\u003c\/p\u003e\n\u003cp\u003eThe supplied manufacturer information confirms the fuse's electrical ratings, operating characteristics, and general construction features. However, it does not specify individual UL or CSA certification numbers, RoHS or REACH compliance declarations, or detailed material composition information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial Motor Circuits\u003c\/li\u003e\n\u003cli\u003eManufacturing and Production Equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial Control Panels\u003c\/li\u003e\n\u003cli\u003eCommercial Electrical Distribution Systems\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Industrial Machinery\u003c\/li\u003e\n\u003cli\u003eEquipment With Frequent Startup Cycles\u003c\/li\u003e\n\u003cli\u003eMaintenance-Intensive Facilities\u003c\/li\u003e\n\u003cli\u003eHigh-Capacity Fuse-Protected Circuits\u003c\/li\u003e\n\u003cli\u003eCompatible Fuse Blocks and Holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eLittelfuse® is a registered trademark of Littelfuse, Inc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Littelfuse, Inc. or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"New In Box","offer_id":50459267793195,"sku":"LLSRK400ID","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459267825963,"sku":"LLSRK400ID  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/llsrk400id","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}