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New tool
by SMOKEYBOB - 02/15/21 04:59 PM
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 minimum OCPD for wall oven
#198802
02/04/11 09:50 PM
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Joined: Aug 2006
Posts: 356
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Here is the info given in the installation instruction from the oven manufacturer.
7200W, 240V dedicated 30Amp circuit
I know the minimum is 30A OCPD with # minimum #10 conductors.
Now for the maximum i figured 40Amps OCPD according to 422.11(E)(3)
30 x 150% = 37.5Amps
Am i correct on this?
Be kind to your neighbor, he knows where you live
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Re: minimum OCPD for wall oven
[Re: Niko]
#198810
02/04/11 11:03 PM
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Joined: Apr 2002
Posts: 7,233
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Niko:
30 x 150% equates to 45 . 37.5 would equate to 125% of 30.
Math aside, some may interpert the nameplate as "30 amp max", as I read it....dedicated 30 amp circuit.
John
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Re: minimum OCPD for wall oven
[Re: Niko]
#198818
02/05/11 04:34 AM
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Joined: Aug 2006
Posts: 356
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But if one doesn't interpret the name plate as the MAX, then one can use 30 x 150% and install a maximum 45A OCPD?
Thanks
Be kind to your neighbor, he knows where you live
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 Re: minimum OCPD for wall oven
[Re: Niko]
#198821
02/05/11 10:31 AM
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Joined: Jul 2002
Posts: 241
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Niko,
If I had to run a circuit to the oven, I would run #8's. If the oven draws 30 amps on full (Thanksgiving Dinner) then your wire size needs to be 8's onto a 40 amp Breaker. (4 wire)
Good Day
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