| Wiring Voltage | 15 AMPERE | 20 AMPERE | 30 AMPERE | ||||
| Receptacle | Plug | Receptacle | Plug | Receptacle | Plug | ||
| 2-Pole 2-Wire | |||||||
|---|---|---|---|---|---|---|---|
| 125V | L1 |
 L1-15R |
 L1-15P |
||||
| 250V | L2 |
 L2-20R |
 L2-20P |
||||
| 277V AC | L3 | Reserved For Future Configurations | |||||
| 600V | L4 | Reserved For Future Configurations | |||||
| 2-Pole 3-Wire Grounding | |||||||
| 125V | L5 |
 L5-15R |
 L5-15P |
 L5-20R |
 L5-20P |
 L5-30R |
 L5-30P |
| 250V | L6 |
 L6-15R |
 L6-15P |
 L6-20R |
 L6-20P |
 L6-30R |
 L6-30P |
| 277V AC | L7 |
 L7-15R |
 L7-15P |
 L7-20R |
 L7-20P |
 L7-30R |
 L7-30P |
| 347V AC | L24 |
 L24-20R |
 L24-20P |
||||
| 480V AC | L8 |
 L8-20R |
 L8-20P |
 L8-30R |
 L8-30P |
||
| 600V AC | L9 |
 L9-20R |
 L9-20P |
 L9-30R |
 L9-30P |
||
| 3-Pole 3-Wire | |||||||
| 125/250V | L10 |
 L10-20R |
 L10-20P |
 L10-30R |
 L10-30P |
||
| 3Ø 250V | L11 |
 L11-15R |
 L11-15P |
 L11-20R |
 L11-20P |
 L11-30R |
 L1-30P |
| 3Ø 480V | L12 |
 L12-20R |
 L12-20P |
 L12-30R |
 L12-30P |
||
| 3Ø 600V | L13 |
 L13-30R |
 L13-30P |
||||
| 3-Pole 40Wire Grounding | |||||||
| 125/250V | L14 |
 L14-20R |
 L14-20P |
 L14-30R |
 L14-30P |
||
| 3Ø 250V | L15 |
 L15-20R |
 L15-20P |
 L15-30R |
 L15-30P |
||
| 3Ø 480V | L16 |
 L16-20R |
 L16-20P |
 L16-30R |
 L16-30P |
||
| 3Ø 600V | L17 |
 L17-30R |
 L17-30P |
||||
| 4-Pole 4-Wire | |||||||
| 3ØY 120/208V | L18 |
 L18-20R |
 L18-20P |
 L18-30R |
 L18-30P |
||
| 3ØY 277/480V | L19 |
 L19-20R |
 L19-20P |
 L19-30R |
 L19-30P |
||
| 3ØY 347/600V | L20 |
 L20-20R |
 L20-20P |
 L20-30R |
 L20-30P |
||
| 4-Pole 5-Wire Grounding | |||||||
| 3ØY 120/208V | L21 |
 L21-20R |
 L21-20P |
 L21-30R |
 L21-30P |
||
| 3ØY 277/480V | L22 |
 L22-20R |
 L22-20P |
 L22-30R |
 L22-30P |
||
| 3ØY 347/600v | L23 |
 L23-20R |
 L23-20P |
 L23-30R |
 L23-30P |
||