{"product_id":"llnrk020","title":"LLNRK020 - 20Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eLLNRK020 - 20Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your motor starts or a transformer energizes, the initial current surge can be much higher than the normal operating load. That's how many electrical systems work. The trick is choosing a fuse that distinguishes a brief, expected surge from an electrical condition that requires protection. The Littelfuse LLNRK020 20 Amp Class RK1 Time-Delay Fuse is designed with that distinction in mind.\u003c\/p\u003e\n\u003cp\u003eA defining feature of the LLNRK020 fuse is its two-element construction. Littelfuse incorporates a thermally reversible, spring-loaded thermal overload element to help provide the delay needed during temporary current surges. For maintenance teams and electrical contractors, this matters because unnecessary fuse openings can interrupt otherwise normal equipment operation. The correct time-delay fuse can reduce those interruptions when properly coordinated with the circuit's load characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e20 Amp Continuous Current Rating\u003c\/li\u003e\n\u003cli\u003e250VAC Maximum Voltage Rating\u003c\/li\u003e\n\u003cli\u003e125VDC Maximum Voltage Rating\u003c\/li\u003e\n\u003cli\u003eClass RK1 Fuse Classification\u003c\/li\u003e\n\u003cli\u003eLittelfuse POWR-PRO Family\u003c\/li\u003e\n\u003cli\u003eLLNRK Series Design\u003c\/li\u003e\n\u003cli\u003eSlo-Blo Time-Delay Operation\u003c\/li\u003e\n\u003cli\u003eDual-Element Fuse Construction\u003c\/li\u003e\n\u003cli\u003eSpring-Loaded Thermal Overload Element\u003c\/li\u003e\n\u003cli\u003eCurrent-Limiting Protection\u003c\/li\u003e\n\u003cli\u003eShort-Circuit Protection\u003c\/li\u003e\n\u003cli\u003eSustained Overload Protection\u003c\/li\u003e\n\u003cli\u003eTemporary Inrush Current Accommodation\u003c\/li\u003e\n\u003cli\u003eReduced Unnecessary Fuse Opening\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\u003eCatalog Number:\u003c\/strong\u003e LLNRK020\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Littelfuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Current-Limiting Time-Delay Fuse\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\u003eSeries:\u003c\/strong\u003e LLNRK\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 20 Amps\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 125VDC\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\u003eFuse Construction:\u003c\/strong\u003e Dual Element\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\u003eAC Interrupting Value 1:\u003c\/strong\u003e 200,000 Amps at 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupting Value 2:\u003c\/strong\u003e 300,000 Amps at 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000 Amps at 125VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent-Limiting Design:\u003c\/strong\u003e Yes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating Feature:\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\u003eManufacturer-Identified Holder Series:\u003c\/strong\u003e LFR25030\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 supplied product information does not specify the exact body material, terminal material, or individual material-compliance declarations for LLNRK020. It also does not provide specific UL or CSA certification file numbers or individual certification markings. Verify these details through current manufacturer documentation and the markings on the actual product when required for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral-Purpose Electrical Circuits\u003c\/li\u003e\n\u003cli\u003eMotor Circuits\u003c\/li\u003e\n\u003cli\u003eTransformer Circuits\u003c\/li\u003e\n\u003cli\u003eSolenoid Circuits\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 Distribution\u003c\/li\u003e\n\u003cli\u003eIndustrial Electrical Distribution\u003c\/li\u003e\n\u003cli\u003eService Entrance Applications\u003c\/li\u003e\n\u003cli\u003eCompatible Class RK1 Fuse Holders\u003c\/li\u003e\n\u003cli\u003eCompatible Existing Class H Fuse Blocks\u003c\/li\u003e\n\u003cli\u003eLFR25030 Series Fuse 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":50459263271211,"sku":"LLNRK020","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459263303979,"sku":"LLNRK020  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/llnrk020","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}