Fusetron FRN-R-125 Fuse is a 125 Amp 600 Volt AC and DC-rated dual-element time-delay class RK5 fuse. It is UL-listed, CSA certified and CE-marked. The FRN-R-125 fuse is designed for motor circuits and transformer protection in industrial, commercial, and residential applications. This fuse is also UL recognized to UL 248-14.