Bussmann FRN-R-200 Fusetron Dual Element Time Delay RK5 Fuse

FRN-R-200 is a Bussmann Fusetron Class RK5 dual-element time-delay fuse rated for 200 A at 250 VAC (125 VDC also listed), designed to protect motor-driven and power distribution circuits while tolerating brief inrush surges common to motors and compressors. This current-limiting FRN‑R fuse uses a dual-element configuration to prevent nuisance tripping during normal startup currents while still delivering fast interruption under fault conditions, with an interrupting rating of up to 200 kA at 250 VAC and 20 kA at 125 VDC. The blade-body cartridge measures about 7-1/8 inches long and 1-9/16 inches in diameter, UL-listed for Class RK5 installations, and offered in a non-indicating format suitable for panel and disconnect mounting. As part of the Bussmann RK5 family, FRN-R fuses are widely used in HVAC equipment, pumps, compressors, transformers, and motor control circuits where dependable protection against high-energy faults is required without sacrificing normal operation. The FRN-R-200 can serve as a direct replacement in compatible RK5 holders, providing the protection you need in 250 VAC systems and offering the reliability associated with Bussmann's Fusetron line for industrial and commercial electrical equipment.