Mersen semiconductor fuse holders feature open face styles. Rated 750 volts and accommodates 22-millimeters by 58-millimeters fuses. Fuse holders feature Mersen's unique adder-block design which can be snapped onto 1, 2, or 3-pole blocks to form multi-pole segmented blocks of as many poles as desired. Box connectors is offered to fit a wide range of standard or solid copper wire. All versions have verified dielectric strengths in excess of 2500 volts. A patented built-in DIN-rail adapter on the U710 blocks adds further design versatility. All fuse clips are made of high conductivity tin-plated copper with spring reinforced clips. Highlights: thermoplastic bases, DIN-rail (U710) or screw mount, adder block design. Applications: all circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc. Approvals: UL recognized component guide IZLT2, File E52283, CSA Certified class 6225, file 32169. 750V voltage rating, 200kA SCCR rating, 100 ampere current rating. Connector torque: 35-inches pounds.