Bussmann 40 Amp Time-Delay Class RK1 Power Fuse (600V)

Ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication on select ratings. Time-delay - 10 seconds (minimum) at 500% of rated current. * 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 * 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. * Time-delay permits 130% FLA sizing for back-up motor protection. * Current-limitation protects downstream components against damaging thermal and magnetic effects of short-circuit currents. * Protects against single-phase motor damage. * Proper sizing can provide "no damage" Type 2 coordinated protection for NEMA and IEC motor controllers