A removable safety key disables this Switch to protect against unauthorized use. A large paddle allows fast shut-down in any situation. Rated at 2 Horsepower, 110V/220-Volt, 20-Amp. Fits 1-7/16-Inch tall by 7/8-Inch wide cutout or can be screw mounted at 1-1/2-Inch wide on center by 2-11/16-Inch tall on center.