UL98 and CSA certified, HP rated and approved for service entrance applications. Compact one piece light weight construction with enables easier installation even in tight spaces. Multiple break current path for excellent loaded endurance, reduces heat and increases switching speed. Extended endurance cycles provides three time the UL requirement. 400 amp switch has two lugs 1/0 – 600 MCM; using two smaller wires vs. one large wire can significantly reduce installation cost. Lay-in lugs provide for easier wiring. Lug cap is removable and dramatically reduces the need for vertical insertion of wire into the lug. Spring loaded heat sink fuse clip providing maintenance free consistent contact pressure for optimum performance. One piece line and load base to assure consistent phase-to-phase alignment. Enclosure incorporates an upward flange to prevent water, ice, and snow access from the top of the enclosure. Reduction in seams and large overlaps improve sealing characteristics. Extra ground lug on neutral eliminates the need for installers to add addition lug when required for local codes. Tangential knock outs for consistent installation. Rugged metal handle with large red grip which provides highly visible. Generous wire gutters that meet and/or exceed NEC wire bending space requirements. A unique enclosure design that adds rigidity and strength. It also offers a touch safe edge for the installer’s hand.