3 Wire Plug Diagram. The outlet should be wired to a dedicated 20 amp 240 volt circuit breaker in the service panel using 12 2 awg cable. You may find yourself with either a 3 wire or 4 wire electric range.
When replacing a three prong plug connect the black wire in the cord to the brass terminal screw the white wire to the chrome terminal and the green or bare wire which is the ground wire to the green ground screw in the plug. Using a wire stripper as shown strip 1 2 inch of insulation from the end of each wire. How to wire 240 volt outlets and plugs within 3 wire 220v wiring diagram image size 750 x 328 px and to view image details please click the image.
Attach wires to terminal screws.
First cut off the damaged plug. Take care not to cut the three wires inside. This outlet is commonly used for a heavy load such as a large air conditioner. Attach wires to terminal screws.
