The heavy-gauge brass straps lock into the 100 percent nylon faces and back bodies - ensuring long-term durability. And a sturdy mechanical shutter system helps prevent children from sticking objects into the receptacle. Installation is quick and easy, thanks to screw-pressure-plate back wiring (side wiring is supported too). There is even a back wire clamp on the ground terminal.
Additional Info: Operating Temperature: -40 to 60 deg C