Commercial Grade Toggle Combination Switches Back & Side Wire. Grounding terminal screw standard. Receptacles have triple wipe line contacts and double wipe ground contacts to insure long-term plug retention. Thick steel mounting strap zinc-plated for corrosion resistance. Break-off provision for wiring both devices on same circuit or on separate circuits. Terminal screws backed out, ready for wiring. Side wire terminals accept up to #10 solid or stranded wire. Pilot light may be wired to indicate power "on" or power "off". Combination slot/Phillips head mounting and terminal screws ease installation (slot/Robertson screws in Canada where available).