This commercial grade switch features a heavy duty cam action mechanism for quiet switch action. Tapered lead-in slots on back wiring holes assist in gathering stranded wires for faster, more secure connections. The side wire terminals accept up to no. 10 solid or stranded wire and the automatic grounding system eliminates the need to bond the jumper in its grounded metal enclosure. Ground screw terminal standard. Back and side wire wiring method. This product measures 1 in. long by 1-1/3 in. wide by 3-2/7 in. high. Cooper Wiring Devices is dedicated to providing the up-to-date wiring device solutions that increase energy efficiency, increase productivity, promote safety at work and in the home, and produce reliable performance. Cooper Wiring Devices is a trusted name in electrical products for over 175-years.