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Electrical Wire and Cable

Oven Wiring with a 3-Wire Connection

How to Wire an Electric Range – The electrical circuit for this oven will need to be tested to be sure that the ground connection is actually present. The installation manual should be double checked to be certain that all of the wiring connection points are correct.

Kitchen Range Circuit and 3-Wire Connections
Electrical Question: I recently purchased a new electric range with a digital control.

This electrical wiring question came from: Bob, an Electrician in Florida.

Dave’s Reply:
Thanks for your electrical wiring question Bob.

3-Wire and 4-Wire Oven Circuit Connections

How to Wire an Electric Range

Electrical Connections for 3-Wire and 4-Wire Range Connections


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220 Volt Wiring Diagram

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FAQs Frequently Asked Questions and Comments

4 Responses to “Oven Wiring with a 3-Wire Connection”
  1. Allen says:

    I am replacing an oven, the old oven is on a 30 amp breaker, the new oven requires a 30 amp breaker- ok there. The wire supplying the oven has a black, white, and ground wire. The wire from the oven has black, white, RED, and green (ground) wire. How do I properly connect these wires?

    • Dave Rongey says:

      Hi Allen
      You will need to look in the oven manufacturers installation manual to see if a 3wire connection is allowed. If so the manual will describe how to connect the oven neutral and ground wires to the incoming circuit ground wire. However, if your oven does not allow a 3wire connection and requires a separate neutral wire then a new 4wire circuit will be need to be installed.
      Enjoy your new oven,

  2. PETER HUDSON says:

    I have just bought an oven and hob to replace my old ones. The new ones say to wire to an oven socket on its own circuit but the old ones were both wired to separate 3 pin 13 amp plugs sockets. I do not have a fixed 30 amp box on its own circuit. is it safe to wire to the plugs the same as the old units?

    • Dave Rongey says:

      Hi Peter,
      The new oven and hob appear to have a larger circuit requirement than the original, therefore a new circuit will be required. Connecting the 30amp oven to the existing 13amp circuit would cause an overloaded condition. Be sure to check the circuit requirements as stated in the installation manual.