Ferraz Shawmut Tri-onic Class RK5 Fuses

Tri-onic Class RK5 TR and TRS fuses are equipped with current-limiting capabilities that prevent damage to system components in short-circuit conditions. The fuses feature an open-fuse indicator, which turns from silver to red when a fuse is open. The RK5 current-limiting time delay fuses provide overcurrent protection for motors, transformers, service entrance equipment, feeders, and branch circuits.