FWH — North American 500 Vac/dc (UL), 35 to 1600 A North American style bolted tags high speed fuses, for the protection of DC common bus, power converters/rectifiers and reduced rated voltage starters. Ratings ? Volts ? 500 Vac (UL) ? 500 Vdc (35-800 A only) ? Amps 35-1600 A ? IR ? 200 kA RMS Sym ? 50 kA at 500 Vdc Agency information ? UL Recognized, JFHR2, E91958, FWH-_B (35-200 A) and FWH-_A (1000 and 1200 A), JFHR2, E56412 FWH-_A (225-800 A) ? CSA Class 1422-30, File 53787 (35-1600 A) ? CE