House - Electrical Parts [Lifetime Warranty] NEMA 10-30P & NEMA 10-50P Interchangeable Straight Blade Angle Plug
Interchangeable straight blade angle plug with brass contact and black housing.
Dimensional diagram of NEMA 10-30P and 10-50P interchangeable straight blade angle plug with technical specifications.
Interchangeable straight blade plug showing NEMA 10-30P and 10-50P configuration diagrams and blade adjustment.
Interchangeable NEMA 10-30P and 10-50P straight blade angle plug with solid brass blades and durable nylon shell.
Wiring diagram for NEMA 10-30P and 10-50P interchangeable angle plug showing neutral, Y-hot, and X-hot terminal locations.
Collage showing wide application of NEMA 10-30P and 10-50P plugs for EV charging, ovens, laundry, and welding equipment.
BlueStars lifestyle graphic featuring a happy family in a car with the text Empowering Your Electrical Connections.
Interchangeable straight blade angle plug with brass contact and black housing.
Dimensional diagram of NEMA 10-30P and 10-50P interchangeable straight blade angle plug with technical specifications.
Interchangeable straight blade plug showing NEMA 10-30P and 10-50P configuration diagrams and blade adjustment.
Interchangeable NEMA 10-30P and 10-50P straight blade angle plug with solid brass blades and durable nylon shell.
Wiring diagram for NEMA 10-30P and 10-50P interchangeable angle plug showing neutral, Y-hot, and X-hot terminal locations.
Collage showing wide application of NEMA 10-30P and 10-50P plugs for EV charging, ovens, laundry, and welding equipment.
BlueStars lifestyle graphic featuring a happy family in a car with the text Empowering Your Electrical Connections.
Lifetime Warranty

[Lifetime Warranty] NEMA 10-30P & NEMA 10-50P Interchangeable Straight Blade Angle Plug

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NEMA 10-30P & NEMA 10-50P Interchangeable Straight Blade Angle Plug

Key Features

  • Dual-configuration design fits NEMA 10-30R or 10-50R receptacles
  • Includes interchangeable blades for 30 Amp and 50 Amp applications
  • Voltage Rating: 125/250V
  • Configuration: 3-Pole, 3-Wire, Non-Grounding
  • Construction: Heavy-duty thermoplastic shell with solid brass blades
  • Angle plug body for strain relief and low-profile connection
  • Resistant to moisture and chemicals for indoor or outdoor use

Replaces / Cross-Reference Part Numbers

  • Pass & Seymour 3861
  • 287-E

Compatibility & Fitment

  • Connects to NEMA 10-30R (30A, 125/250V) or NEMA 10-50R (50A, 125/250V) receptacles
  • Commonly used for electric ranges, ovens, and clothes dryers in older installations
  • Accepts wire gauges appropriate for 30A and 50A circuits

When to Replace

  • Visible damage, cracks, or chips in the plug housing
  • Blades are bent, loose, corroded, or show signs of arcing
  • Discoloration or melting from overheating
  • Intermittent or unreliable power connection to the appliance

Installation Tips

  • Disconnect power at the circuit breaker before beginning installation
  • Verify the correct blades (30A or 50A) are installed to match the wall receptacle and circuit rating
  • Ensure the power cord is properly rated for the selected amperage
  • Securely tighten terminal screws to the manufacturer's torque specifications
  • Firmly fasten the internal cord clamp to prevent strain on the wire terminals
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  • INTERCHANGEABLE PLUG DESIGN

    INTERCHANGEABLE PLUG DESIGN

    Easily switch between NEMA 10-30P and NEMA 10-50P plugs as needed for different power requirements.
  • CERTIFIED MATERIAL

    CERTIFIED MATERIAL

    Built with solid brass blades and PA66 Nylon shell, offer corrosion-proof and impact-resistant properties.
  • SAVING SOLUTION

    SAVING SOLUTION

    BlueStars brings DIY solutions to help you deal with any trouble.
  • EASY TO INSTALL

    EASY TO INSTALL

    Replacing a Straight Blade Angle Plug with a 3-wire design is straightforward, requiring just a screwdriver and pliers.
CONNECTING LIVES, ENERGIZING MOMENTS

CONNECTING LIVES, ENERGIZING MOMENTS

BlueStars - #1 source of high-quality electrical parts
NEMA
10-30P/10-50P
Ampere
30A/50A
Voltagen
125/250 Volt
Operating Temperature
-40°C to 60°C
Terminal Accept
10 to 6 AWG

FAQ

The NEMA 10-30P is a 30-amp, 125/250V plug typically used for electric clothes dryers, while the NEMA 10-50P is a 50-amp, 125/250V plug commonly used for electric ranges and heavy-duty welding equipment. This interchangeable plug allows you to switch between these two configurations by adjusting the blade orientation to match your specific receptacle.
You will need a standard Phillips head screwdriver to open the housing and secure the wire terminals, and a pair of wire strippers to prepare your power cord conductors. Installation typically takes 10 to 15 minutes.
This plug is designed for 3-wire cords. Ensure your cord has two hot wires and one neutral wire. It is not compatible with 4-wire (grounded) systems found in newer electrical codes.
You should replace the plug if you notice discoloration on the blades, signs of melting or scorching on the plastic housing, or if the plug feels loose when inserted into the wall outlet. These symptoms often indicate high-resistance connections caused by oxidation or loose internal wire terminals.
Yes, provided the wire gauge of your power cord is appropriate for the amperage of the circuit you are connecting to. Always ensure the circuit breaker matches the amperage rating of the appliance and the cord being used.