Littelfuse FRN-R-200 Time-Delay Fuse

The Littelfuse FRN-R-200 is a Fusetron time-delay fuse with a 200 A current rating and 250 V operating voltage, featuring dual-element construction for reliable interruption during sustained faults while tolerating brief surge currents. This time-delay (slow-blow) device protects electrical circuits and equipment by allowing short-term overloads, such as startup surges, to pass without nuisance tripping and then opening the circuit if the fault persists. Identified by the FRN-R-200 part number, it belongs to Littelfuse’s FRN-R family, designed for high-current protection in power distribution and large-load applications where dependable fault clearing is required. Use this fuse in systems that demand strong surge tolerance alongside definitive protection, ensuring wiring and components are safeguarded from damaging overcurrent conditions.