NEMA Locking Blade Configurations Chart

Wiring Voltage 15 AMPERE 20 AMPERE 30 AMPERE
Receptacle Plug Receptacle Plug Receptacle Plug
2-Pole 2-Wire
125V L1 L1-15R
L1-15R
L1-15P
L1-15P
250V L2 L2-20R
L2-20R
L2-20P
L2-20P
277V AC L3 Reserved For Future Configurations
600V L4 Reserved For Future Configurations
2-Pole 3-Wire Grounding
125V L5 L5-15R
L5-15R
L5-15P
L5-15P
L5-20R
L5-20R
L5-20P
L5-20P
L5-30R
L5-30R
L5-30P
L5-30P
250V L6 L6-15R
L6-15R
L6-15P
L6-15P
L6-20R
L6-20R
L6-20P
L6-20P
L6-30R
L6-30R
L6-30P
L6-30P
277V AC L7 L7-15R
L7-15R
L7-15P
L7-15P
L7-20R
L7-20R
L7-20P
L7-20P
L7-30R
L7-30R
L7-30P
L7-30P
347V AC L24 L24-20R
L24-20R
L24-20P
L24-20P
480V AC L8 L8-20R
L8-20R
L8-20P
L8-20P
L8-30R
L8-30R
L8-30P
L8-30P
600V AC L9 L9-20R
L9-20R
L9-20P
L9-20P
L9-30R
L9-30R
L9-30P
L9-30P
3-Pole 3-Wire
125/250V L10 L10-20R
L10-20R
L10-20P
L10-20P
L10-30PR width=
L10-30R
L10-30P
L10-30P
3Ø 250V L11 L11-15R
L11-15R
L11-15P
L11-15P
L11-20R
L11-20R
L11-20P
L11-20P
L11-30R
L11-30R
L11-30P
L1-30P
3Ø 480V L12 L12-20R
L12-20R
L12-20P
L12-20P
L12-30R
L12-30R
L12-30P
L12-30P
3Ø 600V L13 L13-30R
L13-30R

L13-30P
3-Pole 40Wire Grounding
125/250V L14 L14-20R
L14-20R
L14-20P
L14-20P
L14-30R
L14-30R
L14-30P
L14-30P
3Ø 250V L15 L15-20R
L15-20R
L15-20P
L15-20P
L15-30R
L15-30R
L15-30P
L15-30P
3Ø 480V L16 L16-20R
L16-20R
L16-20P
L16-20P
L16-30R
L16-30R
L16-30P
L16-30P
3Ø 600V L17 L17-30R
L17-30R
L17-30P
L17-30P
4-Pole 4-Wire
3ØY 120/208V L18 L18-20R
L18-20R
L18-20P
L18-20P
L18-30R
L18-30R
L18-30P
L18-30P
3ØY 277/480V L19 L19-20R
L19-20R
L19-20P
L19-20P
L19-30R
L19-30R
L19-30P
L19-30P
3ØY 347/600V L20 L20-20R
L20-20R
L20-20P
L20-20P
L20-30R
L20-30R
L20-30P
L20-30P
4-Pole 5-Wire Grounding
3ØY 120/208V L21 L21-20R
L21-20R
L21-20P
L21-20P
L21-30R
L21-30R
L21-30P
L21-30P
3ØY 277/480V L22 L22-20R
L22-20R
L22-20P
L22-20P
L22-30R
L22-30R
L22-30P
L22-30P
3ØY 347/600v L23 L23-20R
L23-20R
L23-20p
L23-20P
L23-30R
L23-30R
L23-30P
L23-30P