NEMA 5-20 is the 20A US AC outlet with a T-shaped neutral slot accepting both 15A and 20A plugs. Used for high-power appliances and server room circuits.
| Pin | Name | Function | Type |
|---|---|---|---|
| L | Line Hot | 120V AC live | PWR |
| N | Neutral | 120V AC return T-slot | PWR |
| G | Ground | Safety earth ground | GND |