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20 amp double pole circuit for a Kiln


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Your second question gave me a good chuckle, thanks. Now that I've regained my composure; there should be a data plate on your kiln that specifies its power needs, it'll read something like 240v AC 60hz 40amps. Your breaker needs to match the amperage listed on that plate. If it says 40amps then you have the correct breaker, but we just had a discussion about electric ranges needing a 50amp circuit and I suspect that your kiln will draw at least as much as a range, maybe more. Check the data plate or google the specifications for your specific kiln if you don't have it in front of you to look at.


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Is it OK to power a 240 volt electric Kiln from a 20 amp double pole breaker and with 20 amp circuit wires? Doesn't that kiln draw a lot of juice and for a very long time?

It depends on the kiln. What did the kiln's data plate say? It should list the requirements for the circuit that powers it.

- Jim Katen, Oregon

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