{"product_id":"klsr020","title":"KLSR020 - 20Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eKLSR020 - 20Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLSR020 is a 20A Class RK1 fast-acting, current-limiting fuse designed for applications where quick response to overloads and short circuits is a key part of the protection strategy. Its single-element silver-link design combines fast-acting operation with current-limiting performance, helping reduce equipment damage caused by the heating and magnetic effects of short-circuit currents. If you're matching an existing fuse, don't stop at the 20A marking—Class RK1, fast-acting operation, voltage, interrupting capacity, physical format, and holder compatibility all matter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e20A continuous current rating for circuits and equipment specifically requiring this amperage.\u003c\/li\u003e\n\u003cli\u003eClass RK1 fuse with the electrical and physical characteristics associated with this fuse class.\u003c\/li\u003e\n\u003cli\u003eFast-acting (F) operation provides quick overload and short-circuit response.\u003c\/li\u003e\n\u003cli\u003eBuilt around a single-element silver-link design.\u003c\/li\u003e\n\u003cli\u003eCurrent-limiting construction helps reduce equipment damage caused by the heating and magnetic effects of short-circuit currents.\u003c\/li\u003e\n\u003cli\u003eRated for operation up to 600VAC.\u003c\/li\u003e\n\u003cli\u003eAlso rated for up to 250VDC in compatible DC applications.\u003c\/li\u003e\n\u003cli\u003eIndustrial cartridge construction makes the physical fuse format straightforward to identify during replacement.\u003c\/li\u003e\n\u003cli\u003eNon-indicating design for equipment that does not require integral fuse-status indication.\u003c\/li\u003e\n\u003cli\u003eInstalls using a compatible fuse block, clip, or holder.\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 KLSR020\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Description:\u003c\/strong\u003e FUS 600V F\/A CLASS RK1 20A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e KLSR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fast-Acting, Current-Limiting Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 20A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 250VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupting Rating:\u003c\/strong\u003e 200,000A at 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A at 250VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed Interrupting Rating:\u003c\/strong\u003e 20 kA at 250VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Characteristic:\u003c\/strong\u003e Fast-Acting (F)\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\u003eFamily Style:\u003c\/strong\u003e Current Limiting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction \/ Size:\u003c\/strong\u003e Industrial Cartridge\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement Design:\u003c\/strong\u003e Single-element silver link\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 Holder Series:\u003c\/strong\u003e LFR60030 Series\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 manufacturer information identifies the KLSR Series as using a single-element silver-link design. It confirms the KLSR020's Class RK1 classification, current-limiting family style, fast-acting opening characteristic, and industrial cartridge construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLSR020 20A fuse is a strong match for equipment specifically designed around a Class RK1 fast-acting, current-limiting fuse and requiring the corresponding electrical ratings. The manufacturer identifies variable speed drives, rectifiers, and other equipment containing surge-sensitive components as applications where the KLSR Series' fast response can be useful. Its current-limiting design is intended to reduce equipment damage associated with the heating and magnetic effects of short-circuit currents.\u003cbr\u003e\u003c\/p\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":50459236073771,"sku":"KLSR020","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459236106539,"sku":"KLSR020  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/klsr020","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}