0

My old range from the 1970s has two 30A circuits coming to it. New ranges all use a single 40A circuit. Can I join the two sets of wires into a single 60A breaker? The circuits would be joined at both ends to a new 60A wiring, one to range and one to new breaker.

  • Where are you located? What is the make and model of the new range? – Tester101 Aug 22 '15 at 21:41
  • Looking around it seems I can't do what I suggest! I'm in the Bay Area. No range yet, I'm looking on craigslist – Daniel Kanaan Aug 22 '15 at 22:05
  • What is the wire size at the breaker and receptacle? Should be the same but you never know. – WarLoki Aug 22 '15 at 22:07
4

Bottom line is NO, you definitely cannot do what you propose. You CANNOT parallel a circuit like this of this size. It is expressly forbidden in the NEC, and could very well be a safety hazard.

If the appliance takes two separate circuits like your old one that is a different story. Do you know what size and type of wire is feeding the old 30A circuits?

Also, all "new ranges" definitely do not use a 40A circuit. Many can, but many also have too great a draw for a 40A circuit.

The NEC allows any household cooking appliance 12kW or under to be served by a 40A circuit, but I see more and more basic units over 12kW.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.