Class J high speed fuses

The Bussmann^® series of DFJ high speed, current-limiting fuses are UL Listed Class J fuses.

They provide maximum protection for AC and DC drives and controllers and meet NEC^® branch circuit protection requirements.

The DFJ drive fuse has the lowest I²t of any branch circuit fuse to protect power semiconductor devices that utilize diodes, GTOs, SCRs and SSRs.