Re: Sizing overcurrent protective devices, disconnects and wire. 5 HP 230 volts, single phase bolted to the floor air compressor. The nameplate amps = 23. Using the proper table in article 430, amps = 28. My question is: Is the air compressor considered an appliance thus should article 422 be used? I used to always use the amps listed in the tables in article 430. However, I believe the air compressor could be considered an appliance and the nameplate amps could be used.
