Features heavy galvanized steel and mounting strap to resist corrosion.;Patented lay-in terminals accept up to #4 AWG;Back features concentric knockouts and an adjustable cord clamp to allow wiring from back and bottom;Features 3-Pole/4-Wiring with a Nema Standard of 14-50R with 125/250 Voltage;To be used with aluminum or copper wiring

• Eaton WD125 3-Pole 3-Wire 30-Amp 125-Volt Surface Mount Dryer Power Receptacle, Black
• Black

Eaton WD125 3-Pole 3-Wire 30-Amp 125-Volt Surface Mount Dryer Power Receptacle, BlackCooper Wiring