{"product_id":"klnr300","title":"KLNR300 - 300Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eKLNR300 - 300Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLNR300 is a 300A Class RK1 fast-acting, current-limiting fuse designed for your electrical equipment that specifically requires this combination of amperage, fuse class, voltage rating, and opening characteristic. Its single-element silver-link design provides fast-acting overload and short-circuit protection. At the same time, the current-limiting construction helps reduce equipment damage associated with the heating and magnetic effects of short-circuit currents. This non-indicating fuse uses a knife-blade configuration and mounts in a compatible fuse block, clip, or holder; the supplied specifications identify the LFR25400 Series holder. For a replacement, don't stop at the 300A rating—confirm Class RK1, fast-acting operation, voltage, interrupting capacity, physical configuration, and mounting requirements against the equipment specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300A continuous current rating for equipment designed around a 300-amp Class RK1 fuse.\u003c\/li\u003e\n\u003cli\u003eFast-acting (F) opening characteristic provides rapid overload and short-circuit protection.\u003c\/li\u003e\n\u003cli\u003eUses a single-element silver-link design, a defining characteristic of the KLNR\/KLSR series.\u003c\/li\u003e\n\u003cli\u003eThe current-limiting construction helps reduce damage from the heating and magnetic effects of short-circuit currents.\u003c\/li\u003e\n\u003cli\u003eRated for electrical systems up to 250VAC.\u003c\/li\u003e\n\u003cli\u003eKnife-blade construction provides the physical format specified for the KLNR300.\u003c\/li\u003e\n\u003cli\u003eThe non-indicating design means this model does not include a fuse-status indication feature.\u003c\/li\u003e\n\u003cli\u003eDesigned for installation in 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 KLNR300\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Description:\u003c\/strong\u003e FUS 250V F\/A CLASS RK1 300A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e KLNR\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 300A\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\u003eAC Interrupting Rating:\u003c\/strong\u003e 200,000A at 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A at 125VDC\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\u003eElement Design:\u003c\/strong\u003e Single-element silver link\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction \/ Size:\u003c\/strong\u003e Knife-Blade\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 LFR25400 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 KLNR300 as a Class RK1 fuse. It confirms its fast-acting operation, current-limiting family style, single-element silver-link design, knife-blade construction, and electrical ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLNR300 300A fuse best matches electrical equipment designed for a 300A Class RK1 fast-acting, current-limiting fuse with knife-blade construction. The manufacturer's application guidance specifically points to variable speed drives, rectifiers, and other equipment containing surge-sensitive components as examples where the KLNR\/KLSR series' fast-acting behavior can be useful. For AC service, verify the equipment requirements against the 250VAC maximum and 200,000A interrupting rating at 250VAC. For DC service, confirm compatibility with the 125VDC maximum and 20,000A interrupting rating at 125VDC.\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":50459230765355,"sku":"KLNR300","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459230798123,"sku":"KLNR300  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/klnr300","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}