50 Amp, 125/250 Volt (4-wire) NEMA 14-50R Fits all wall-plates with 2.15" diameter center hole lack outlet made of thermoplastic body and heat resistant material Only accepts 8, 6, and 4 gauge Copper Wires (AWG) Neutral wire is required and can be applicable to 125V or 250V applications and up to 50 Amps Fits in BOTH single and 2-Gang box styles Terminals marked for easy identification and fast wiring