BUSSMANN LPS-RK-225 U Fuse, Industrial RK5 Class

BUSSMANN LPS-RK-225 U is a 225 A, 600 V industrial fuse from the Eaton Bussmann series, part of the LPS-RK family in Class RK5. It is a time-delay, dual-element, current-limiting fuse designed for protection of 600 V power-distribution circuits in industrial environments. Verified catalog variants include LPS-RK-225SP and LPS-RK-225SPI, both rated at 225 A and 600 V; the SPI variant carries an interrupting rating up to 300 kA at 600 Vac. The RK5 designation ensures compatibility with standard RK5 fuse blocks and holders, enabling straightforward integration into protective schemes. This fuse is typically used to protect 600 V AC distribution circuits and feeders where brief inrush currents may occur, providing reliable overcurrent protection while handling high fault currents.