How to Wire a NEMA 6-15 Plug | Hunker A NEMA 6-15 plug is for a 15-amp, 240-volt circuit and is generally used for office equipment and some air conditioners. The manufacturer recommends using 14-gauge, two conductor cable, but it's safer to upgrade this to 12-gauge. Don't forget to identify the white wire as a hot wire, not neutral. Wiring Device NEMA Wiring - AutomationDirect PDF fileWiring Devices – NEMA Wiring Diagrams 600V AC 600V AC 600V AC G EQUIP. GR. L17-30R 3-Pole 4-Wire Grounding Continued 3ø 600V AC 18-15R 18-20R 18-30R1 8-50R 18-60R L5 30 Plug Wiring Diagram Nema L14 30r Wiring As Well As L5 30p Wiring Ac Plug Further 30 6 50 v Wiring Diagram Furthermore Air Fuel Ratio Gauge Wiring Diagram Furthermore. Wiring diagram and rating of single-phase V/30A connector L Generator plug wiring diagram l wiring diagram l outlet nema lr diagram nema 14 30 wiring diagram 3 prong plug wiring.