NEMA straight blade plugs, connectors, and receptacles carry unique pin positions based upon amperage and voltage. Use the NEMA plug chart below to identify a configuration by pin array or designation. NEMA designations are based on a two-part code where the numbers before the dash represent voltage and wires and the numbers after the dash represent amperage. For example, the "5" in the common NEMA 5 15 represents 3-Wire 125V and the "15" represents 15 amp. While most designations have been adopted by various industries, some of these configurations have never been manufactured.

Straight Blades
Specs Product Links
Configuration Voltage Amperage Wires Poles Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA 1-15 Diagram
NEMA 1-15
125V AC 15 amps 2 Wires 2 Poles 1-15 1-15 - 1-15 - - -
NEMA 1-20 Diagram
NEMA 1-20
125V AC 20 amps 2 Wires 2 Poles - - - - - - -
NEMA 1-30 Diagram
NEMA 1-30
125V AC 30 amps 2 Wires 2 Poles - - - - - - -
NEMA 2-15 Diagram
NEMA 2-15
250V AC 15 amps 2 Wires 2 Poles - - - - - - -
NEMA 2-20 Diagram
NEMA 2-20
250V AC 20 amps 2 Wires 2 Poles - 2-20 - - - 2-20 -
NEMA 2-30 Diagram
NEMA 2-30
250V AC 30 amps 2 Wires 2 Poles - - - - - - -
NEMA 5-15 Diagram
NEMA 5-15
125V AC 15 amps 3 Wires 2 Poles 5-15 5-15 5-15 5-15 5-15 5-15 5-15
NEMA 5-20 Diagram T-Slot
NEMA 5-20
T-Slot
125V AC 20 amps 3 Wires 2 Poles 5-20 5-20 5-20 5-20
T-Slot
5-20
T-Slot
5-20
T-Slot
5-20
NEMA 5-30 Diagram
NEMA 5-30
125V AC 30 amps 3 Wires 2 Poles - 5-30 - - - 5-30 -
NEMA 5-50 Diagram
NEMA 5-50
125V AC 50 amps 3 Wires 2 Poles - 5-50 - - - 5-50 -
NEMA 6-15 Diagram
NEMA 6-15
250V AC 15 amps 3 Wires 2 Poles 6-15 6-15 6-15 6-15 6-15 6-15 -
NEMA 6-20 Diagram T-Slot
NEMA 6-20
T-Slot
250V AC 20 amps 3 Wires 2 Poles 6-20
T-Slot
6-20
T-Slot
6-20
T-Slot
6-20
T-SLot
6-20
T-Slot
6-20
T-Slot
6-20
T-Slot
NEMA 6-30 Diagram
NEMA 6-30
250V AC 30 amps 3 Wires 2 Poles - - - - - 6-30 -
NEMA 6-50 Diagram
NEMA 6-50
250V AC 50 amps 3 Wires 2 Poles - - - - - 6-50 -
NEMA 7-15 Diagram
NEMA 7-15
277V AC 15 amps 3 Wires 2 Poles - 7-15 - - - 7-15 -
NEMA 7-20 Diagram
NEMA 7-20
277V AC 20 amps 3 Wires 2 Poles - - - - - - -
NEMA 7-30 Diagram
NEMA 7-30
277V AC 30 amps 3 Wires 2 Poles - 7-30 - - - 7-30 -
NEMA 7-50 Diagram
NEMA 7-50
277V AC 50 amps 3 Wires 2 Poles - 7-50 - - - 7-50 -
NEMA 10-20 Diagram
NEMA 10-20
125/250V AC 20 amps 3 Wires 3 Poles - 10-20 - - - 10-20 -
NEMA 10-30 Diagram
NEMA 10-30
125/250V AC 30 amps 3 Wires 3 Poles - 10-30 - - - 10-30 -
NEMA 10-50 Diagram
NEMA 10-50
125/250V AC 50 amps 3 Wires 3 Poles - 10-50 - 10-50 - 10-50 -
NEMA 11-15 Diagram
NEMA 11-15
3Ø 250V AC 15 amps 3 Wires 3 Poles - - - - - - -
NEMA 11-20 Diagram
NEMA 11-20
3Ø 250V AC 20 amps 3 Wires 3 Poles - - - - - - -
NEMA 11-30 Diagram
NEMA 11-30
3Ø 250V AC 30 amps 3 Wires 3 Poles - - - - - - -
NEMA 11-50 Diagram
NEMA 11-50
3Ø 250V AC 50 amps 3 Wires 3 Poles - - - - - - -
NEMA 14-15 Diagram
NEMA 14-15
125/250V AC 15 amps 4 Wires 3 Poles - - - - - - -
NEMA 14-20 Diagram
NEMA 14-20
125/250V AC 20 amps 4 Wires 3 Poles - - - - - 14-20 -
NEMA 14-30 Diagram
NEMA 14-30
125/250V AC 30 amps 4 Wires 3 Poles - 14-30 - - - 14-30 -
NEMA 14-50 Diagram
NEMA 14-50
125/250V AC 50 amps 4 Wires 3 Poles - 14-50 - - - 14-50 -
NEMA 14-60 Diagram
NEMA 14-60
125/250V AC 60 amps 4 Wires 3 Poles - 14-60 - - - 14-60 -
NEMA 15-15 Diagram
NEMA 15-15
3Ø 250V AC 15 amps 4 Wires 3 Poles - - - - - - -
NEMA 15-20 Diagram
NEMA 15-20
3Ø 250V AC 20 amps 4 Wires 3 Poles - 15-20 - - - 15-20 -
NEMA 15-30 Diagram
NEMA 15-30
3Ø 250V AC 30 amps 4 Wires 3 Poles - 15-30 - - - 15-30 -
NEMA 15-50 Diagram
NEMA 15-50
3Ø 250V AC 50 amps 4 Wires 3 Poles - 15-50 - - - 15-50 -
NEMA 15-60 Diagram
NEMA 15-60
3Ø 250V AC 60 amps 4 Wires 3 Poles - 15-60 - - - 15-60 -
NEMA 18-15 Diagram
NEMA 18-15
3ØY 120/208V AC 15 amps 4 Wires 4 Poles - - - - - - -
NEMA 18-20 Diagram
NEMA 18-20
3ØY 120/208V AC 20 amps 4 Wires 4 Poles - 18-20 - - - 18-20 -
NEMA 18-30 Diagram
NEMA 18-30
3ØY 120/208V AC 30 amps 4 Wires 4 Poles - 18-30 - - - 18-30 -
NEMA 18-50 Diagram
NEMA 18-50
3ØY 120/208V AC 50 amps 4 Wires 4 Poles - 18-50 - - - 18-50 -
NEMA 18-60 Diagram
NEMA 18-60
3ØY 120/208V AC 60 amps 4 Wires 4 Poles - 18-60 - - - 18-60 -
NEMA 24-15 Diagram
NEMA 24-15
347V AC 15 amps 3 Wires 2 Poles - - - - - - -
NEMA 24-20 Diagram
NEMA 24-20
347V AC 20 amps 3 Wires 2 Poles - - - - - - -
NEMA 24-30 Diagram
NEMA 24-30
347V AC 30 amps 3 Wires 2 Poles - - - - - - -
NEMA 24-50 Diagram
NEMA 24-50
347V AC 50 amps 3 Wires 2 Poles - - - - - - -