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NEMA Twist Lock Reference Chart

NEMA Twist Lock Blades
Rating IP20 Suitability
Configuration
Male/Female
Voltage Amperage Wires Poles Standard
Cord

Plug

Inlet

Connector

Outlet

Receptacle

Adapter
NEMA L1-15 Diagram
NEMA L1-15
125V AC 15 amps 2 Wires 2 Poles NEMA Custom
Cords
L1-15 L1-15 L1-15 L1-15 L1-15 Custom
Adapters
NEMA L2-20 Diagram
NEMA L2-20
250V AC 20 amps 2 Wires 2 Poles NEMA Custom
Cords
L2-20 L2-20 L2-20 L2-20 L2-20 Custom
Adapters
NEMA L5-15 Diagram
NEMA L5-15
125V AC 15 amps 3 Wires 2 Poles NEMA L5-15 L5-15 L5-15 L5-15 L5-15 L5-15 L5-15
NEMA L5-20 Diagram
NEMA L5-20
125V AC 20 amps 3 Wires 2 Poles NEMA L5-20 L5-20 L5-20 L5-20 L5-20 L5-20 L5-20
NEMA L5-30 Diagram
NEMA L5-30
125V AC 30 amps 3 Wires 2 Poles NEMA L5-30 L5-30 L5-30 L5-30 L5-30 L5-30 L5-30
NEMA L5-50 Diagram
NEMA L5-50
125V AC 50 amps 3 Wires 2 Poles California CS 50a
Cords
CS6361C CS6377 CS6360C N/A CS6370 Custom
Adapters
NEMA L5-60 Diagram
NEMA L5-60
125V AC 60 amps 3 Wires 2 Poles IEC60309 Pin &
Sleeve
360P4W 360B4W 360C4W N/A 360R4W Custom
Adapters
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L6-15 Diagram
NEMA L6-15
250V AC 15 amps 3 Wires 2 Poles NEMA L6-15 L6-15 L6-15 L6-15 L6-15 L6-15 L6-15
NEMA L6-20 Diagram
NEMA L6-20
250V AC 20 amps 3 Wires 2 Poles NEMA L6-20 L6-20 L6-20 L6-20 L6-20 L6-20 L6-20
NEMA L6-30 Diagram
NEMA L6-30
250V AC 30 amps 3 Wires 2 Poles NEMA L6-30 L6-30 L6-30 L6-30 L6-30 L6-30 L6-30
NEMA L6-50 Diagram
NEMA L6-50
250V AC 50 amps 3 Wires 2 Poles California CS 50a
Cords
CS8265C CS8275 CS8264C N/A CS8269 Custom
Adapters
NEMA L6-60 Diagram
NEMA L6-60
250V AC 60 amps 3 Wires 2 Poles IEC60309 Pin &
Sleeve
360P6W 360B6W 360C6W N/A 360R6W Custom
Adapters
NEMA L7-15 Diagram
NEMA L7-15
277V AC 15 amps 3 Wires 2 Poles NEMA Custom
Cords
L7-15 L7-15 L7-15 L7-15 L7-15 Custom
Adapters
NEMA L7-20 Diagram
NEMA L7-20
277V AC 20 amps 3 Wires 2 Poles NEMA Custom
Cords
L7-20 L7-20 L7-20 L7-20 L7-20 Custom
Adapters
NEMA L7-30 Diagram
NEMA L7-30
277V AC 30 amps 3 Wires 2 Poles NEMA Custom
Cords
L7-30 L7-30 L7-30 L7-30 L7-30 Custom
Adapters
NEMA L7-50 Diagram
NEMA L7-50
277V AC 50 amps 3 Wires 2 Poles NEMA N/A N/A N/A N/A N/A N/A N/A
NEMA L7-60 Diagram
NEMA L7-60
277V AC 60 amps 3 Wires 2 Poles NEMA N/A N/A N/A N/A N/A N/A N/A
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L24-20 Diagram
NEMA L24-20
347V AC 20 amps 3 Wires 2 Poles NEMA Custom
Cords
L24-20 L24-20 L24-20 L24-20 L24-20 Custom
Adapters
NEMA L8-20 Diagram
NEMA L8-20
480V AC 20 amps 3 Wires 2 Poles NEMA Custom
Cords
L8-20 L8-20 L8-20 L8-20 L8-20 Custom
Adapters
NEMA L8-30 Diagram
NEMA L8-30
480V AC 30 amps 3 Wires 2 Poles NEMA Custom
Cords
L8-30 L8-30 L8-30 L8-30 L8-30 Custom
Adapters
NEMA L8-50 Diagram
NEMA L8-50
480V AC 50 amps 3 Wires 2 Poles California CS 50a
Cords
CS8465C CS8475 CS8464C N/A CS8469 Custom
Adapters
NEMA L8-60 Diagram
NEMA L8-60
480V AC 60 amps 3 Wires 2 Poles IEC60309 Pin &
Sleeve
360P7W 360B7W 360C7W N/A 360R7W Custom
Adapters
NEMA L9-20 Diagram
NEMA L9-20
600V AC 20 Amps 3 Wires 2 Poles NEMA Custom
Cords
L9-20 L9-20 L9-20 L9-20 L9-20 Custom
Adapters
NEMA L9-30 Diagram
NEMA L9-30
600V AC 30 Amps 3 Wires 2 Poles NEMA Custom
Cords
L9-30 L9-30 L9-30 L9-30 L9-30 Custom
Adapters
NEMA L9-50 Diagram
NEMA L9-50
600V AC 50 amps 3 Wires 2 Poles Non-NEMA Custom
Cords
HBL3763C HBL3777 HBL3762C N/A HBL3771 Custom
Adapters
NEMA L9-60 Diagram
NEMA L9-60
600V AC 60 amps 3 Wires 2 Poles N/A N/A N/A N/A N/A N/A N/A N/A
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L10-20 Diagram
NEMA L10-20
125/250V AC 20 amps 3 Wires 3 Poles Non-NEMA Custom
Cords
HBL9965C HBL3325C HBL7314C HBL3326C HBL7310B Custom
Adapters
NEMA L10-30 Diagram
NEMA L10-30
125/250V AC 30 amps 3 Wires 3 Poles Non-NEMA Custom
Cords
HBL3331C HBL3334C HBL3333C HBL3335C HBL3330 Custom
Adapters
NEMA L11-15 Diagram
NEMA L11-15
3Ø 250V AC 15 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L11-20 Diagram
NEMA L11-20
3Ø 250V AC 20 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L11-30 Diagram
NEMA L11-30
3Ø 250V AC 30 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L12-20 Diagram
NEMA L12-20
3Ø 480V AC 20 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L12-30 Diagram
NEMA L12-30
3Ø 480V AC 30 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L13-30 Diagram
NEMA L13-30
3Ø 600V AC 30 amps 3 Wires 3 Poles N/A N/A N/A N/A N/A N/A N/A N/A
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L14-20 Diagram
NEMA L14-20
125/250V AC 20 amps 4 Wires 3 Poles NEMA L14-20 L14-20 L14-20 L14-20 L14-20 L14-20 L14-20
NEMA L14-30 Diagram
NEMA L14-30
125/250V AC 30 amps 4 Wires 3 Poles NEMA L14-30 L14-30 L14-30 L14-30 L14-30 L14-30 L14-30
NEMA L14-50 Diagram
NEMA L14-50
125/250V AC 50 amps 4 Wires 3 Poles California CS 50a
Cords
CS6365C CS6375 CS6364C N/A CS6369 Custom
Adapters
NEMA L14-60 Diagram
NEMA L14-60
125/250V AC 60 amps 4 Wires 3 Poles IEC60309 Pin &
Sleeve
460P12W 460B12W 460C12W N/A 460R12W Custom
Adapters
NEMA L15-20 Diagram
NEMA L15-20
3Ø 250V AC 20 amps 4 Wires 3 Poles NEMA Custom
Cords
L15-20 L15-20 L15-20 L15-20 L15-20 Custom
Adapters
NEMA L15-30 Diagram
NEMA L15-30
3Ø 250V AC 30 amps 4 Wires 3 Poles NEMA L15-30 L15-30 L15-30 L15-30 L15-30 L15-30 Custom
Adapters
NEMA L15-50 Diagram
NEMA L15-50
3Ø 250V AC 50 amps 4 Wires 3 Poles California CS 50a
Cords
CS8365C CS8375 CS8364C N/A CS8369 Custom
Adapters
NEMA L15-60 Diagram
NEMA L15-60
3Ø 250V AC 60 amps 4 Wires 3 Poles IEC60309 Pin &
Sleeve
460P9W 460B9W 460C9W N/A 460R9W Custom
Adapters
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L16-20 Diagram
NEMA L16-20
3Ø 480V AC 20 amps 4 Wires 3 Poles NEMA Custom
Cords
L16-20 L16-20 L16-20 L16-20 L16-20 Custom
Adapters
NEMA L16-30 Diagram
NEMA L16-30
3Ø 480V AC 30 amps 4 Wires 3 Poles NEMA Custom
Cords
L16-30 L16-30 L16-30 L16-30 L16-30 Custom
Adapters
NEMA L16-50 Diagram
NEMA L16-50
3Ø 480V AC 50 amps 4 Wires 3 Poles California CS 50a
Cords
CS8165C CS8175 CS8164C N/A CS8169 Custom
Adapters
NEMA L16-60 Diagram
NEMA L16-60
3Ø 480V AC 60 amps 4 Wires 3 Poles IEC60309 Pin &
Sleeve
460P7W 460B7W 460C7W N/A 460R7W Custom
Adapters
NEMA L17-30 Diagram
NEMA L17-30
3Ø 600V AC 30 amps 4 Wires 3 Poles NEMA Custom
Cords
L17-30 L17-30 L17-30 L17-30 L17-30 Custom
Adapters
NEMA L17-50 Diagram
NEMA L17-50
3Ø 600V AC 50 amps 4 Wires 3 Poles Non-NEMA Custom
Cords
HBL3765C HBL3768 HBL3764C N/A HBL3769 Custom
Adapters
NEMA L17-60 Diagram
NEMA L17-60
3Ø 600V AC 60 amps 4 Wires 3 Poles IEC60309 Pin &
Sleeve
460P5W 460B5W 460C5W N/A 460R5W Custom
Adapters
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L18-20 Diagram
NEMA L18-20
3ØY
120/208V AC
20 amps 4 Wires 4 Poles NEMA Custom
Cords
L18-20 L18-20 L18-20 L18-20 L18-20 Custom
Adapters
NEMA L18-30 Diagram
NEMA L18-30
3ØY
120/208V AC
30 amps 4 Wires 4 Poles NEMA Custom
Cords
L18-30 L18-30 L18-30 L18-30 L18-30 Custom
Adapters
NEMA L19-20 Diagram
NEMA L19-20
3ØY
347/600V AC
20 amps 4 Wires 4 Poles NEMA Custom
Cords
L19-20 L19-20 L19-20 L19-20 L19-20 Custom
Adapters
NEMA L19-30 Diagram
NEMA L19-30
3ØY
347/600V AC
30 amps 4 Wires 4 Poles NEMA Custom
Cords
L19-30 L19-30 L19-30 L19-30 L19-30 Custom
Adapters
NEMA L20-20 Diagram
NEMA L20-20
3ØY
347/600V AC
20 amps 4 Wires 4 Poles NEMA Custom
Cords
L20-20 L20-20 L20-20 L20-20 L20-20 Custom
Adapters
NEMA L20-30 Diagram
NEMA L20-30
3ØY
347/600V AC
30 amps 4 Wires 4 Poles NEMA Custom
Cords
L20-30 L20-30 L20-30 L20-30 L20-30 Custom
Adapters
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L21-20 Diagram
NEMA L21-20
3ØY
120/208V AC
20 amps 5 Wires 4 Poles NEMA L21-20 L21-20 L21-20 L21-20 L21-20 L21-20 L21-20
NEMA L21-30 Diagram
NEMA L21-30
3ØY
120/208V AC
30 amps 5 Wires 4 Poles NEMA L21-30 L21-30 L21-30 L21-30 L21-30 L21-30 L21-30
NEMA L21-50 Diagram
NEMA L21-50
3ØY
120/208V AC
50 amps 5 Wires 4 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L21-60 Diagram
NEMA L21-60
3ØY
120/208V AC
60 amps 5 Wires 4 Poles IEC60309 Pin &
Sleeve
560P9W 560B9W 560C9W N/A 560R9W Custom
Adapters
NEMA L22-20 Diagram
NEMA L22-20
3ØY
277/480V AC
20 amps 5 Wires 4 Poles NEMA L22-20 L22-20 L22-20 L22-20 L22-20 L22-20 Custom
Adapters
NEMA L22-30 Diagram
NEMA L22-30
3ØY
277/480V AC
30 amps 5 Wires 4 Poles NEMA L22-30 L22-30 L22-30 L22-30 L22-30 L22-30 Custom
Adapters
NEMA L22-50 Diagram
NEMA L22-50
3ØY
277/480V AC
50 amps 5 Wires 4 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L22-60 Diagram
NEMA L22-60
3ØY
277/480V AC
60 amps 5 Wires 4 Poles IEC60309 Pin &
Sleeve
560P7W 560B7W 560C7W N/A 560R7W Custom
Adapters
Configuration
Male/Female
Voltage Amperage Wires Poles Standard Cord Plug Inlet Connector Outlet Receptacle Adapter
NEMA L23-20 Diagram
NEMA L23-20
3ØY
347/600V AC
20 amps 5 Wires 4 Poles NEMA L23-20 L23-20 L23-20 L23-20 L23-20 L23-20 Custom
Adapters
NEMA L23-30 Diagram
NEMA L23-30
3ØY
347/600V AC
30 amps 5 Wires 4 Poles NEMA L23-30 L23-30 L23-30 L23-30 L23-30 L23-30 Custom
Adapters
NEMA L23-50 Diagram
NEMA L23-50
3ØY
347/600V AC
50 amps 5 Wires 4 Poles N/A N/A N/A N/A N/A N/A N/A N/A
NEMA L23-60 Diagram
NEMA L23-60
3ØY
347/600V AC
60 amps 5 Wires 4 Poles IEC60309 Pin &
Sleeve
560P5W 560B5W 560C5W N/A 560R5W Custom
Adapters

Note

National Electrical Manufacturers Association (NEMA) as approved by American National Standards Institute (ANSI) published ANSI/NEMA WD 6 to specify Wiring Device dimensional specifications. The male and female cord ends identified in this document are categorized as Non-Locking Type and Locking Type.

The Locking Type which have curved blades that are oriented in a circular manner are commonly referred to as Twist-Lock which is a term first patented by Harvey Hubbell in 1929. We have provided the full list of NEMA configurations that have been specified. This does NOT mean the units are commercially available as many have never been put into production by the various electrical wiring device manufacturers. You will note in the cross reference that N/A (not available) appears several times to largely reflect the absence of a commercially produced NEMA product.

The various wiring device manufacturers have turned to alternate standards and products for locking devices rated 50 Amp and 60 Amp. We have listed IEC60309, California CS 50A, and Non-NEMA alternatives based upon comparable voltage, amperage, and phases. Form factor and pin array has not been considered for purposes of the alternative product listed.

National Electric Code (NEC) may also influence the options in which a wiring device is offered.