Meets all UL 498 requirements. Triple wipe line contacts for long-term plug retention. Double wipe ground contacts for ground retention. 0.50" thick steel wrap-around mounting strap galvanized for corrosion resistance. Easy access split circuit break-off tab (except dual voltage). Side wire terminals accept up to #10 solid or stranded wire. Terminal screws backed out; ready for wiring. Combination slot/Phillips head mounting and terminal screws.