{"product_id":"llnrk450","title":"LLNRK450 - 450Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eLLNRK450 - 450Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA motor starting up shouldn't stop your entire operation. Yet electrical systems need protection when an overload or short circuit threatens equipment. The trick is knowing the difference between a temporary surge and a genuine problem.\u003c\/p\u003e\n\u003cp\u003eInside the fuse, two elements work together to handle different electrical conditions. A thermally reversible, spring-loaded overload element allows the fuse to tolerate appropriate short bursts of inrush current. When an overload persists, the fuse responds. That means fewer nuisance openings during normal startup conditions when the fuse is correctly sized for the application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e450 Amp continuous current rating\u003c\/li\u003e\n\u003cli\u003eDual-element time-delay operation\u003c\/li\u003e\n\u003cli\u003eClass RK1 current-limiting design\u003c\/li\u003e\n\u003cli\u003eHigh AC interrupting capacity\u003c\/li\u003e\n\u003cli\u003e20,000A DC interrupting rating\u003c\/li\u003e\n\u003cli\u003eReduced nuisance fuse openings\u003c\/li\u003e\n\u003cli\u003eLow-resistance construction\u003c\/li\u003e\n\u003cli\u003ePotential Class H fuse block upgrade\u003c\/li\u003e\n\u003cli\u003eNon-indicating design\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 LLNRK450\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e LLNRK\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e POWR-PRO\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\u003eFuse Type:\u003c\/strong\u003e Dual-Element, Time-Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 450 Amps\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 250V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 125V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupting Ratings:\u003c\/strong\u003e 200,000A and 300,000A at 250V AC, as listed by Littelfuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A at 125V 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\u003eCurrent-Limiting:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload Element:\u003c\/strong\u003e Thermally Reversible, Spring-Loaded Thermal Element\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating:\u003c\/strong\u003e No\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\u003eSpecified Fuse Holder Series:\u003c\/strong\u003e LFR25600\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 manufacturer identifies the Littelfuse LLNRK450 as a Class RK1 current-limiting, time-delay fuse in the POWR-PRO family.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUL Listing or Certification: Confirm the applicable listing and conditions using current Littelfuse documentation.\u003c\/li\u003e\n\u003cli\u003eCSA Certification: Verify current certification status and applicable requirements with the manufacturer.\u003c\/li\u003e\n\u003cli\u003eRoHS Compliance: Consult the latest manufacturer material compliance declaration.\u003c\/li\u003e\n\u003cli\u003eREACH Compliance: Consult the latest manufacturer material compliance declaration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecific certification numbers and material compliance declarations are not established by the specifications provided here. For projects requiring documented approvals, confirm them against the manufacturer's current records.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eService entrance equipment\u003c\/li\u003e\n\u003cli\u003eMain and feeder circuits\u003c\/li\u003e\n\u003cli\u003eMotor circuits\u003c\/li\u003e\n\u003cli\u003eTransformers\u003c\/li\u003e\n\u003cli\u003eSolenoids and electromagnetic equipment\u003c\/li\u003e\n\u003cli\u003eFluorescent lighting circuits\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose branch circuits\u003c\/li\u003e\n\u003cli\u003eExisting Class H fuse block upgrades\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":50459265040683,"sku":"LLNRK450","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459265073451,"sku":"LLNRK450  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/llnrk450","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}