{"product_id":"kllu800","title":"KLLU800 - 800Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eKLLU800 - 800Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn 800A fuse is only the right replacement when your electrical and physical requirements line up, too. The KLLU800 is a Class L, time-delay, current-limiting fuse rated for 800A continuous current, with a maximum voltage of 600VAC and 300VDC, and a bolt-in mounting configuration. Its current-limiting design also helps reduce short-circuit damage to systems and equipment. For replacement work, check the full KLLU800 specification—Class L, 800A rating, voltage, interrupting capacity, time-delay characteristics, and bolt-in mounting—rather than relying on amperage alone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e800A continuous current rating for electrical equipment designed around an 800-amp Class L fuse.\u003c\/li\u003e\n\u003cli\u003eClass L time-delay operation helps handle temporary starting currents without unnecessarily opening during normal equipment startup.\u003c\/li\u003e\n\u003cli\u003eManufacturer specifies a minimum 10-second time delay at 500% of rated current, an important characteristic for large motors and other inductive loads.\u003c\/li\u003e\n\u003cli\u003eRated for systems up to 600VAC and 300VDC, subject to the applicable interrupting ratings and equipment requirements.\u003c\/li\u003e\n\u003cli\u003eCurrent-limiting construction reduces short-circuit damage to electrical systems and equipment.\u003c\/li\u003e\n\u003cli\u003eThe manufacturer identifies motor branch-circuit protection as an application for properly selected KLLU fuses.\u003c\/li\u003e\n\u003cli\u003eBolt-in mounting provides the physical configuration required by equipment designed for this Class L fuse format.\u003c\/li\u003e\n\u003cli\u003eNon-indicating design for installations that call for a standard non-indicating fuse.\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 KLLU800\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Description:\u003c\/strong\u003e FUS 600V T\/D CLASS L 800A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e KLLU\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Time-Delay Current-Limiting Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 800A\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 300VDC\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 300VDC\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\u003eSpecified Time Delay:\u003c\/strong\u003e Minimum 10 seconds at 500% of rated current\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class L\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 Bolt-In\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 Bolt-In\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 KLLU Series as UL Listed and states that these time-delay Class L fuses meet or exceed UL requirements for Class L fuses. For the KLLU800 specifically, the supplied information confirms its Class L classification, 800A continuous rating, current-limiting family style, time-delay opening characteristic, and bolt-in mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLLU800 800A Class L fuse is best suited to electrical equipment specifically designed for an 800A, time-delay, current-limiting Class L fuse with bolt-in mounting. The manufacturer's guidance specifically addresses motor branch-circuit protection. It states that KLLU fuses may be sized close to motor full-load current when properly applied to protect branch-circuit conductors, motor control equipment, and motors. The minimum 10-second time delay at 500% of rating also makes the series particularly relevant where large motors or other inductive loads produce substantial starting current.\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":50459228373291,"sku":"KLLU800","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459228406059,"sku":"KLLU800  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/kllu800","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}