Bussmann FRN-R-30 Amp Brass 250-Volt Fusetron Dual Element Time-Delay RK5 Cartridge Fuse FRN Series Fusetron Dual Element Time-Delay Class RK5 Cartridge Fuse by Cooper Bussmann 30 Amps , 250 Volts Current Limiting, Class RK5, UL Listed, CSA Certified Pack of 1 FRN-R-30A Cartridge Fuse by Cooper Bussmann