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Description: Ultimate protection Class J dual element, current-limiting, time-delay fuses available with optional open fuse indication. Time-delay – 10 seconds (minimum) at 500% of rated current. Catalog Symbols: LPJ-(amp)SP (non-indicating) LPJ-(amp)SPI (indicating) Ratings: Volts — 600Vac, 300Vdc Amps — 70-600A IR — 300kA Vac RMS Sym. — 100kA Vdc Agency Information: CE, UL Listed, Guide JDDZ, File E4273 CSA Certified, Class 1422-02, File 53787, Class J per CSA C22.2 No. 248.8, Catalog Numbers (amps) — Non-indicating Fuses* Open fuse indication available on all part numbers by inserting the suffix “I,” e.g., LPJ-90SPI. Requires 75Vac minimum voltage. Carton Quantity: Amp Rating Carton Qty. 70–200 5 225–600 1 | Dimensions - in Features: • Industry's only UL Listed and CSA Certified fuse with a 300kA interrupting 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 so they run cooler. • Can often be sized for back-up protection against motor burnout from overload or single-phasing if other overload protective devices fail. • Proper sizing can provide "no damage" Type 2 coordinated protection for NEMA and IEC motor controllers. • Space-saving package for equipment downsizing. Recommended Fuse Blocks For additional information on the JM Series of fuse blocks, see product brochure # 3192. |
Time-Current Curves - Average Melt
Current-Limitation Curves
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