{"product_id":"kllu1200","title":"KLLU1200 - 1200Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eKLLU1200 - 1200Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt 1200 amps, getting the fuse specifications right means looking beyond the current rating alone. The KLLU1200 is a 1200A Class L, time-delay, current-limiting fuse in a bolt-in configuration for equipment that requires this specific combination of electrical and physical characteristics. The manufacturer also identifies the KLLU Series as UL Listed and meeting or exceeding UL requirements for Class L fuses. When you're replacing or specifying a KLLU1200, check the entire specification—not just 1200A—including fuse class, AC or DC voltage, interrupting rating, time-delay characteristics, and bolt-in mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1200A continuous current rating for electrical equipment specifically designed around a 1200-amp Class L fuse.\u003c\/li\u003e\n\u003cli\u003eClass L construction provides a clearly defined fuse type for accurate replacement matching.\u003c\/li\u003e\n\u003cli\u003eThe time-delay opening characteristic accommodates temporary current increases associated with starting conditions.\u003c\/li\u003e\n\u003cli\u003eThe KLLU Series provides a minimum 10-second time delay at 500% of its rating, according to the manufacturer.\u003c\/li\u003e\n\u003cli\u003eRated for a maximum of 600VAC, giving buyers a clear AC specification to match against their equipment.\u003c\/li\u003e\n\u003cli\u003eThe manufacturer specifies a current-limiting design to reduce short-circuit damage to systems and equipment.\u003c\/li\u003e\n\u003cli\u003eThe manufacturer describes KLLU fuses as offering selective coordination with other Class L fuses and applicable current-limiting fuses rated 600A or less.\u003c\/li\u003e\n\u003cli\u003eBolt-in construction and mounting make physical installation requirements straightforward to identify when checking compatibility.\u003c\/li\u003e\n\u003cli\u003eConfirm the non-indicating design against the requirements of the existing equipment or specified replacement.\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 KLLU1200\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Description:\u003c\/strong\u003e FUS 600V T\/D CLASS L 1200A\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 Class L Time-Delay Current-Limiting Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Current Rating:\u003c\/strong\u003e 1200A\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\u003eTime-Delay Characteristic:\u003c\/strong\u003e Minimum 10 seconds at 500% of rating, as specified for the KLLU Series\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 the series meets or exceeds all UL requirements for Class L fuses. The supplied product information also confirms the KLLU1200's Class L designation, current-limiting family style, time-delay opening characteristic, electrical ratings, and bolt-in construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe KLLU1200 suits electrical equipment that requires a 1200A Class L, time-delay, current-limiting fuse with bolt-in mounting. Its manufacturer-specified time-delay behavior is particularly relevant in properly engineered circuits with expected temporary starting currents, including qualifying large-motor and other inductive-load applications. For motor branch-circuit protection, the manufacturer states that KLLU fuses may be sized close to motor full-load current, subject to application requirements.\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":50459227390251,"sku":"KLLU1200","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459227423019,"sku":"KLLU1200  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/kllu1200","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}