... and break power .3. This series knife switch with fuse is mainly to replace the knife switch of low voltage distribution boards.Specification: 32amps ... , 63amps, 100amps, 200amps, 400amps, 800amps. Model No.DescriptionTFF2-32Gear Switch, 32ATFF2-63Gear Switch, 63ATFF2-100Gear Switch ...