The Bussmann LPS-RK-4SP is a 4 A, low-peak, dual-element, time-delay fuse in the LPS-RK family. Designed for 600 VAC and 300 VDC circuits, it delivers current-limiting protection with interrupting ratings of 300 kA at 600 VAC and 100 kA at 300 VDC. With a cartridge body and RK1 class rating, LPS-RK-4SP is built for panel and motor-control protection environments. It is a non-indicating fuse by default; open fuse indication is available by suffix "I". Part of the Bussmann Low-Peak family, it is UL 248-12 compliant for Class RK1 fuses. Common applications include motor circuits and control panels in industrial settings.
