1 piece compact version adapter for 5-20P or 5-15P plug into NEMA 6-15 outlet for EV charger. Pins and terminals are made with nickel-plated brass to prevent oxidation rust. Air conditioning 15 AMP 3 prong NEMA 6-15 250V male 3-prong plug. Generator 3-prong 5-20 female or Household 5-15 receptacle. Used 12AWG conductor inner wire, support max 20 AMP loading. Heavy-duty 100% copper wire conductor inside. A/C to Household regular adapter for EV, NEMA 6-15P to 5-20R, NEMA 6-15P to 5-15R For Electrical Vehicle.
If you want to use your welder with NEMA 5-20 or 5-15 plug get power from air conditioning 3-prong 15 AMP NEMA 6-15 outlet.
This adapter cord can help you to do it.