This Makita Air compressor is labeled 3 HP but has a 120 V 3 prong cord. I'm used to the limit being 2.4 HP on a 15 Amp breaker. (120 V x 15 A)/746 Watts per HP. Does anyone know the answer on how Makita expects this to be run on a 120 V outlet.I suppose one option is to upgrade to a 20 A breaker if the wiring is up to it. A search of the internet brought up a fellow asking the same question about the same compressor.