Bussmann LPS-RK-125SP Low-Peak Time Delay Fuse

The Bussmann LPS-RK-125SP is a Low-Peak, dual-element time-delay fuse in the LPS-RK family (RK1 class) with a non-indicating design for branch-circuit and motor protection at industrial voltages. Rated at 125 A and 600 VAC (300 VDC), it delivers an interrupt rating of 300 kAIC at 600 VAC and 100 kAIC at 300 VDC, with blade-end connections and electrically isolated end caps for safe, straightforward replacement. Its dual-element, time-delay construction is current-limiting and the package measures 9.63 inches in length, 1.61 inches high, and 1.61 inches wide, weighing about 2 pounds. The product literature lists UL Standard 248-12 Class RK1 compliance for this series, reflecting its suitability for UL-listed applications. In motor and general-protection scenarios, the time-delay feature permits 125 percent of full-load amperage sizing for back-up motors.