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Question DetailsAsked on 6/9/2015

how much would it cost to convert 240 volt outlet to 120 volt outlet

Have an existing 240 volt outlet looking to convert to 120 volt outlet. Have a dedicated 30 amp breaker.

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2 Answers


$65 - $85 labor.

$15 Material

$80 - $100

Answered 5 years ago by Kestrel Electric


One thing on Kestral's reply - your current 30A breaker is presumably matched to the wiring size to be able to handle that much load - like maybe for a dryer or small range. However, depending on what you are using this circuit for, a 30A breaker is likely a gross overcapacity, so would not really be providing much protection to the user or plugged-in devices. Likely needs to have the breaker downsized to 15 or 20A like a normal outlet circuit has - so additional $15-100 materials cost depending on what make/model breakers you have. Usually less than $25 but for a few obsolete brands replacement breakers are pretty pricey.

One other thing - if converting from a 220/240V connection (so likely range or dryer or maybe electric furnace or water heater) I would try to leave the existing box and wiring usable in the future if feasible, say if you are going with gas so need 120V rather than 240V. That way buyers can be told, when you go to sell the house, that a 240V connection is available to the wall and can be hooked back up if their appliances are electric.

Answered 5 years ago by LCD

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