Bussmann's UL Class J fuse products extend both our Low-Peak family of products with our LPJ_SP and LPJ_SPI dual-element, time-delay fuses as well as our Limitron line offering fast-acting JKS fuses. The LPJ fuses provide industry leading 300,000 amp interrupting rating at 600Vac RMS Sym and 100kA Vdc while delivering a minimum of 10 seconds of 500% rated current ride-through performance which is ideal for sizing of high inrush loads. The LPJ products are available with optional permanent replace fuse indication. These UL Class J products in sizes 1 to 600 amps provide exceptional performance at 600 Vac and 300 Vdc (see spec sheets for specific details) in a compact size rejecting footprint

Bussmann Low-Peak™ Time Delay Fuse, Current Limiting, Series: LPJ, Indicating/Non-Indicating: Non-Indicating, Rejection/Non-Rejection: Non-Rejection, 25 A, 600 VAC/300 VDC, 300/100 kA Interrupt, Class: J, 10 s Response, Ferrule Terminal, Holder Mount, Cylindrical Body, Dual Element, Melamine, 0.81 in Dia x 2.25 in L Body Size

• Separate overload and short circuit elements provide time delay for sizing of high inrush loads linked with class J current limitation
• Selective coordination ratio of 2:1 (within Low-Peak® fuse family) prevents electrical shutdowns from extending beyond the failed circuit
• Series combination ratings with branch circuit breakers allows broad range of coverage, independent of breaker manufacturer
• Proper sizing can provide "No Damage" type 2 coordinated protection for NEMA® and IEC® motor controllers
• Space saving package for equipment down sizing
• Industry's only UL listed and CSA Certified fuse with a 300 kA interrupt rating that allows for simple, worry free installation in virtually any application
• Fast short circuit protection and dual element, time delay performance provide ultimate protection
• Reduces existing fuse inventory by up to 33% when upgrading to Low-Peak® fuses
• Consistent 2:1 ampacity ratios for all Low-Peak® fuses make selective coordination easy
• Long time delay minimizes needless fuse openings due to temporary overloads and transient surges
• Current limitation protects downstream components against damaging thermal and magnetic effects of short circuit currents
• Dual element fuses have lower resistance than ordinary fuses, hence they run cooler
• They can often be sized for back up protection against motor burnout from overload or single phasing if other overload protective devices fail

• Catalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_fc3a638338bee061fcea5f8e9ef61e5084ea6008a9a9a0470e5329320a655572.pdf
• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_8161152ef625af688b5fd6430ee64ddf4c9730a5c21722d744bacf9186d72755.pdf
• VIDEO LINK https://www.youtube.com/watch?v=YMvqUyoETXk