Bussmann LPN-RK-125SP Low Peak Current Limiting Fuse

The Bussmann LPN-RK-125SP is a Low Peak, current-limiting RK1 time-delay fuse rated at 125 A and 250 V (AC/DC), engineered to tolerate brief inrush events with a dual-element design that helps prevent nuisance trips. This blade-style, non-indicating fuse fits HM250 or RM250 fuse blocks and delivers a 300 kA interrupt rating at AC and 100 kA at DC for robust short-circuit protection. The device features a melamine body with dimensions of 1-9/16 in diameter and 7-1/8 in length, embodying Bussmann’s Class RK1, high-current protection in a compact cartridge form. Typical industrial applications include large distribution switchboards, power panelboards, motor control centers, and machinery disconnects where dependable time-delay protection is needed for motors and other surge-prone loads.