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New range on undersized breaker

Rachel Woodward
last month

I ordered a new kitchen range and, while preparing to unplug the old one, realized we have a 30A breaker and our new range requires 40A. The wiring is adequately sized to support 40A (8 AWG). The interior subpanel inside the house is from the 50s and parts are no longer available to upsize a single breaker. Service upgrade to the proepety’s exterior main panel was done a few years ago and we will pursue replacement of the aged interior subpanel at some point, but it probably won’t happen before the new range is delivered.


Given that the wire size is adequate, are we ok to have it installed, knowing that we could trip the breaker if we are using too many burners/stove at once? Or should we really pursue electrical upgrades first and postpone delivery?

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