Receptacle rating for permanently installed microhood

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crtemp said:
The inspector is saying I can't do that because it says on the microwave that the circuit input is 1800 watts.
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The inspector is correct about this point. You have to use the micro nameplate rating that the whole micro draws, the rating that includes the light, fan(s), motor(s), electronic controls, and the actual microwave generating power supply.
 
al hildenbrand said:
The inspector is correct about this point. You have to use the micro nameplate rating that the whole micro draws, the rating that includes the light, fan(s), motor(s), electronic controls, and the actual microwave generating power supply.
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In a case like this, I would have to say the onus lies on the manufacturer of the microwave. Perhaps the nameplate was rounded off to 1800. They provided the hood with a 15 amp cord and plug, so there would be no requirement to provide a 20 amp receptacle in my opinion. Inspectors overstep their line sometimes. If the hood had not been installed then there would be no issue. I agree that the code allows the inspector to be a jerk, but it doesn't require it.
 
Strathead said:
In a case like this, I would have to say the onus lies on the manufacturer of the microwave. Perhaps the nameplate was rounded off to 1800. They provided the hood with a 15 amp cord and plug, so there would be no requirement to provide a 20 amp receptacle in my opinion. Inspectors overstep their line sometimes. If the hood had not been installed then there would be no issue. I agree that the code allows the inspector to be a jerk, but it doesn't require it.
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I don't see it as the manufacturer being required to use a 20A cord and plug. The microhood only draws 15A noncontinuous. The requirement for a 20A receptacle is from either being a single on dedicated circuit (tabs removed) or as a wired duplex with a total cord-and-plug load greater than 12A.
 
Strathead said:
They provided the hood with a 15 amp cord and plug, so there would be no requirement to provide a 20 amp receptacle in my opinion.
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The manufacturer assembled microwave with cord and plug complies with NFPA 79 (and/or other standards) which is NOT the NFPA 70 National Electrical Code. It is a fallacy to use that micro cord cap as a basis for a NEC interpretation ignoring the manufacturer's nameplate information. There is nothing in the NEC that states a manufacturer assembled cord cap must (or even CAN) supersede the nameplate ratings.
 
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