{"product_id":"llnrk600","title":"LLNRK600 - 600Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eLLNRK600 - 600Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your 600-amp electrical circuit faults, a lot is at stake. Motors, transformers, distribution equipment, and the systems that depend on them all need protection that can handle normal operating conditions without overlooking a genuine electrical problem.\u003c\/p\u003e\n\u003cp\u003eThe Littelfuse LLNRK600 is a 600 Amp, 250V Class RK1 time-delay fuse from the POWR-PRO series. Designed for service entrance equipment, main and feeder circuits, and general-purpose branch circuits, it combines high interrupting capacity with current-limiting protection for demanding commercial and industrial electrical applications.\u003c\/p\u003e\n\u003cp\u003eFor electrical systems specifically designed around 600A fuse protection, the Littelfuse LLNRK600 delivers a practical combination of time-delay performance, high fault-interruption capability, and current-limiting protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e600 Amp Continuous Current Rating\u003c\/li\u003e\n\u003cli\u003eDual-Element Time-Delay Protection\u003c\/li\u003e\n\u003cli\u003eClass RK1 Current-Limiting Performance\u003c\/li\u003e\n\u003cli\u003eHigh AC Interrupting Capacity\u003c\/li\u003e\n\u003cli\u003e20 kA 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\u003cli\u003eFuse Block and Holder Mounting\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 LLNRK600\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\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\u003eProduct Type:\u003c\/strong\u003e Dual-Element, Current-Limiting Time-Delay Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Classification:\u003c\/strong\u003e Class RK1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 600 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\u003eProtective Elements:\u003c\/strong\u003e Two\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Overload Element:\u003c\/strong\u003e Thermally Reversible, Spring-Loaded\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\u003eFuse Status Indication:\u003c\/strong\u003e Non-Indicating\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 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 LLNRK600 as a Class RK1, dual-element, current-limiting time-delay fuse in the POWR-PRO product family.\u003c\/p\u003e\n\u003cp\u003eThe supplied product specifications do not establish specific certification numbers and environmental compliance declarations. Confirm any required approvals through current manufacturer documentation before specifying the fuse for regulated applications.\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 Distribution Circuits\u003c\/li\u003e\n\u003cli\u003eFeeder Circuits\u003c\/li\u003e\n\u003cli\u003eGeneral-Purpose Branch Circuits\u003c\/li\u003e\n\u003cli\u003eMotor Circuits\u003c\/li\u003e\n\u003cli\u003eTransformer Protection\u003c\/li\u003e\n\u003cli\u003eSolenoids and Electromagnetic Equipment\u003c\/li\u003e\n\u003cli\u003eFluorescent Lighting Circuits\u003c\/li\u003e\n\u003cli\u003eHigh-Inrush Electrical Loads\u003c\/li\u003e\n\u003cli\u003eCompatible 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":50459265171755,"sku":"LLNRK600","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459265204523,"sku":"LLNRK600  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/llnrk600","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}