NEMA 14-30P 14-50P Plug Interchangeable Straight

Key Features

• Interchangeable design for NEMA 14-30P or NEMA 14-50P configurations.
• Dual electrical rating: 30 Amps at 125/250 Volts and 50 Amps at 125/250 Volts.
• Configuration: 3-Pole, 4-Wire, Grounding Type.
• Terminal design accepts copper wire gauges from #10 AWG to #6 AWG.
• Heavy-duty thermoplastic housing for impact resistance.
• Internal cable clamp provides secure strain relief.
• Solid brass blades for optimal conductivity.

Replaces / Cross-Reference Part Numbers

• Pass & Seymour 3867
• Serves as a replacement for most commercial and industrial grade 30A and 50A straight blade plugs from brands such as Leviton, ELEGRP, and STARELO.
• Direct replacement for any plug with NEMA 14-30P or NEMA 14-50P specifications.

Compatibility & Fitment

• Connects to NEMA 14-30R (30A) or NEMA 14-50R (50A) receptacles.
• For use with 30-amp, 4-wire dryer cords or 50-amp, 4-wire range and generator cords.
• Suitable for high-power applications including electric vehicle (EV) chargers, electric ranges, dryers, welders, and generators.

When to Replace

• Visible damage such as cracks, chips, or broken housing.
• Signs of overheating, including discoloration or melted plastic.
• Blades are bent, loose, or show signs of corrosion or arcing.
• Plug fits loosely into the receptacle, causing intermittent power.

Installation Tips

• Disconnect power at the circuit breaker before installation.
• Verify the plug configuration (30A or 50A) matches the appliance requirements and wall receptacle.
• Strip wire insulation according to the gauge strip guide on the device.
• Connect wires to the clearly marked terminals: Green to Ground (G), White to Neutral (W), Black and Red to Hot (X, Y).
• Tighten terminal screws to the manufacturer's recommended torque specification.
• Secure the cord with the internal strain relief clamp to prevent stress on terminal connections.
• Consult a qualified electrician if you are unfamiliar with electrical wiring.