FWJ-150A| Mersen cross: MEV70A

FWJ — North American Style high speed fuse

1000 Vac /800 Vdc (UL), 35 to 2000 A

North American style bolted tags high speed fuses for the protectionof DC common bus, DC drives power converters/rectifiers, reducedrated voltage starters and high voltage traction inverters.

Fuse Ratings

• Volts • 1000 Vac • 800 Vdc • Amps 35-2000 A

• IR • 25 kA RMS Sym. (35-200 A) • 100 kA RMS Sym. (250-2000 A)

• 50 kA at 800 Vdc (35-200 A and 450-600 A)

Fuse PN List and Fuse cross reference

What is a high speed fuse?

High speed fuses are specially designed to minimize the I²t, peak current let-through and arc voltage. Ensuring fast opening and clearing of a fault requires rapid element melting. ... High speed fuses are primarily for protecting semiconductors from short-circuits.