Bussmann FWP-300 Fuse

FWP-300A is a Bussmann/Eaton high-speed, North American bolted cartridge fuse (semiconductor fuse) rated for 300 A RMS with a 700 VAC and 700 VDC rating. It interrupts up to 200 kAIC at 700 VAC and 50 kAIC at 700 VDC, delivering fast fault protection for high-current circuits. The fuse features blade-end x blade-end connections with stud mounting, and its body measures about 2.4 in long, 5.4 in high, and 2.9 in wide, weighing roughly 1.7 lb, with listed watt loss of 58 W. It is non-indicating and UL Recognized, CSA Certified, CE Marked, and RoHS compliant. Catalog number FWP-300A places it in the Bussmann FWP family of high-speed fuses designed for semiconductor protection in heavy-current applications, offering a 700 V rating on both AC and DC.