{"product_id":"llnrk225","title":"LLNRK225 - 225Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eLLNRK225 - 225Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSome electrical equipment draws a lot more current when it starts than it does while running. Motors and transformers are good examples. That brief surge is normal, but it can be a problem when a fuse isn't designed to handle it.\u003c\/p\u003e\n\u003cp\u003eThe Littelfuse LLNRK225 is a 225 Amp, Class RK1 time-delay fuse built for circuits where startup current and reliable fault protection both matter. Part of the Littelfuse POWR-PRO series, it uses a dual-element design that allows temporary inrush currents while providing protection against sustained overloads and short circuits.\u003c\/p\u003e\n\u003cp\u003eThe LLNRK225 is rated for 250V AC and 125V DC, making it suitable for a range of properly rated commercial and industrial electrical systems. You'll find this type of fuse used in service entrance equipment, main distribution circuits, feeders, motor circuits, and other applications where dependable overcurrent protection is essential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e225 Amp Continuous Current Rating\u003c\/li\u003e\n\u003cli\u003eClass RK1 Current-Limiting Protection\u003c\/li\u003e\n\u003cli\u003eDual-Element Time-Delay Design\u003c\/li\u003e\n\u003cli\u003eHelps Prevent Nuisance Fuse Openings\u003c\/li\u003e\n\u003cli\u003eHigh Short-Circuit Interrupting Capacity\u003c\/li\u003e\n\u003cli\u003eReduced Fault Energy Exposure\u003c\/li\u003e\n\u003cli\u003eLow-Resistance Construction\u003c\/li\u003e\n\u003cli\u003eSuitable for Equipment with High Startup Currents\u003c\/li\u003e\n\u003cli\u003eThermally Reversible Overload Element\u003c\/li\u003e\n\u003cli\u003ePOWR-PRO Series Design\u003c\/li\u003e\n\u003cli\u003eCompatible Class H Fuse Block Upgrade Capability\u003c\/li\u003e\n\u003cli\u003eFuse Block, Clip, or 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 LLNRK225\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 Type:\u003c\/strong\u003e Dual-Element, Time-Delay 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 225 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 \/ 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\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\u003eCompatible Holder Series:\u003c\/strong\u003e LFR25400\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass H Fuse Block Compatibility:\u003c\/strong\u003e Suitable for compatible existing installations, subject to equipment ratings\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 LLNRK225 belongs to the POWR-PRO Class RK1 fuse family and is designed for current-limiting, time-delay overcurrent protection.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial Compliance: Refer to current Littelfuse documentation for RoHS and REACH status\u003c\/li\u003e\n\u003cli\u003eSafety Certifications: Confirm applicable UL, CSA, and other certification listings in current manufacturer documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecific environmental compliance declarations and certification listings should be verified against the manufacturer's latest product 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 Distribution Circuits\u003c\/li\u003e\n\u003cli\u003eFeeder Circuits\u003c\/li\u003e\n\u003cli\u003eGeneral-Purpose Branch Circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial Motors\u003c\/li\u003e\n\u003cli\u003eTransformers\u003c\/li\u003e\n\u003cli\u003eSolenoids\u003c\/li\u003e\n\u003cli\u003eFluorescent Lighting Circuits\u003c\/li\u003e\n\u003cli\u003eEquipment with High Inrush Currents\u003c\/li\u003e\n\u003cli\u003eCommercial Electrical Systems\u003c\/li\u003e\n\u003cli\u003eIndustrial Machinery\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":50459264450859,"sku":"LLNRK225","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459264483627,"sku":"LLNRK225  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/llnrk225","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}