Littelfuse FRS-R-150 Fusetron Time-Delay Fuse

Littelfuse FRS-R-150 Fusetron is a dual-element time-delay fuse rated at 150 A. The device carries the part number FRS-R-150 and is part of Littelfuse’s Fusetron family, a line of protection fuses used in electrical circuits to guard wiring and components from overcurrent events. With a dual-element time-delay design, the FRS-R-150 is intended to accommodate brief overcurrent conditions without immediate interruption, while still providing rapid disconnection when the fault persists beyond the time-delay window. The 150 A rating indicates the nominal current at which the fuse is designed to operate under normal conditions before tripping in the event of a fault. As a Littelfuse product, the FRS-R-150 aligns with the company’s standard product naming conventions for Fusetron fuses, enabling clear identification and compatibility within projects that specify Littelfuse protection devices.