NEMA Twist Lock Plug, Receptacle, and Connector Configurations


What is a Twist Lock Plug?

A twist lock plug is an locking plug that must be twisted into the Twist Lock Locking Receptacle to make an electrical connection, locking the plug into the receptacle. Twist lock plugs are used in industry and commercial applications where it is critical that the connection does not become unplugged.

NEMA Twist Lock Plug and Receptacle Chart

See also our NEMA Configurations Chart for Straight Blade Plugs, Receptacles and Connectors.

2 Pole, 3 Wire, Grounded Twist Lock

Legend

R = Receptacle C = Corded female FO = Flanged outlet P = Plug FI = Flanged inlet

Voltage

Type

15 Amperes

Receptacle
Plug
2 POLE, 3 WIRE, GROUNDED

125V

L5

L5-15R
L515-R
L5-15C
L515-FO

L5-15P
L515-P
L515-FI


250V

L6

L6-15R
L615-R
L6-15C
L615-FO

L6-15P
L615-P
L615-FI


277V AC

L7

L7-15R
L715-R
L7-15C
L715-FO

L7-15P
L715-P
L715-FI


480V AC

L8

600V AC

L9


Voltage

Type

20 Amperes

Receptacle
Plug
2 POLE, 3 WIRE, GROUNDED

125V

L5

L5-20R
L520-R
L5-20C
L520-FO

L5-20P
L520-P
L520-FI


250V

L6

L6-20R
L620-R
L6-20C
L620-FO

L6-20P
L620-P
L520-FI


277V AC

L7

L7-20R
L720-R
L7-20C
L720-FO

L7-20P
L720-P
L720-FI


480V AC

L8

L8-20R
L820-R
L8-20C
L820-FO

L8-20P
L820-P
L820-FI


600V AC

L9

L9-20R
L920-R
L9-20C
L920-FO

L9-20P
L920-P
L920-FI



Voltage

Type

30 Amperes

Receptacle
Plug
2 POLE, 3 WIRE, GROUNDED

125V

L5

L5-30R
L530-R
L5-30C
L530-FO

L5-30P
L530-P
L530-FI


250V

L6

L6-30R
L630-R
L6-30C
L630-FO

L6-30P
L630-P
L530-FI


277V AC

L7

L7-30R
L730-R
L7-30C
L730-FO

L7-30P
L730-P
L730-FI


480V AC

L8

L8-30R
L830-R
L8-30C
L830-FO

L8-30P
L830-P
L830-FI


600V AC

L9

L9-30R
L930-R
L9-30C
L930-FO

L9-30P
L930-P
L930-FI




3 Pole, 3 Wire, Ungrounded Twist Lock

Voltage

Type

15 Amperes

Receptacle
Plug
3 POLE, 3 WIRE, UNGROUNDED

125/250V

L10

3 ∅
250V

L11

3 ∅
480V

L12

3 ∅
600V

L13


Voltage

Type

20 Amperes

Receptacle
Plug
3 POLE, 3 WIRE, UNGROUNDED

125/250V

L10

L10-20R
L1020-R
L10-20C
L1020-FO

L10-20P
L1020-P
L1020-FI


3 ∅
250V

L11

L11-20R
L1120-R
L11-20C
L1120-FO

L11-20P
L1120-P
L1120-FI


3 ∅
480V

L12

L12-20R
L1220-R
L12-20C
L1220-FO

L12-20P
L1220-P
L1220-FI


3 ∅
600V

L13


Voltage

Type

30 Amperes

Receptacle
Plug
3 POLE, 3 WIRE, UNGROUNDED

125/250V

L10

L10-30R
L1030-R
L10-30C
L1030-FO

L10-30P
L1030-P
L1030-FI


3 ∅
250V

L11

L11-30R
L1130-R
L11-30C
L1130-FO

L11-30P
L1130-P
L1130-FI


3 ∅
480V

L12

L12-30R
L1230-R
L12-30C
L1230-FO

L12-30P
L1230-P
L1230-FI


3 ∅
600V

L13

L13-30R
L1330-R
L13-30C
L1330-FO

L13-30P
L1330-P
L1330-FI




3 Pole, 4 Wire, Grounded Twist Lock

Voltage

Type

15 Amperes

Receptacle
Plug
3 POLE, 4 WIRE, GROUNDED

125/250V

L14

3 ∅
250V

L15

3 ∅
480V

L16


Voltage

Type

20 Amperes

Receptacle
Plug
3 POLE, 4 WIRE, GROUNDED

125/250V

L14

L14-20R
L1420-R
L14-20C
L1420-FO

L14-20P
L1420-P
L1420-FI


3 ∅
250V

L15

L15-20R
L1520-R
L15-20C
L1520-FO

L15-20P
L1520-P
L1520-FI


3 ∅
480V

L16

L16-20R
L1620-R
L16-20C
L1620-FO

L16-20P
L1620-P
L1620-FI



Voltage

Type

30 Amperes

Receptacle
Plug
3 POLE, 4 WIRE, GROUNDED

125/250V

L14

L14-30R
L1430-R
L14-30C
L1430-FO

L14-30P
L1430-P
L1430-FI


3 ∅
250V

L15

L15-30R
L1530-R
L15-30C
L1530-FO

L15-30P
L1530-P
L1530-FI


3 ∅
480V

L16

L16-30R
L1630-R
L16-30C
L1630-FO

L16-30P
L1630-P
L1630-FI




4 Pole, 4 Wire, Ungrounded Twist Lock

Voltage

Type

15 Amperes

Receptacle
Plug
4 POLE, 4 WIRE, UNGROUNDED

3 ∅Y
120/208V

L18

3 ∅Y
277/480V

L19

3 ∅Y
347/600V

L20


Voltage

Type

20 Amperes

Receptacle
Plug
4 POLE, 4 WIRE, UNGROUNDED

3 ∅Y
120/208V

L18

L18-20R
L1820-R
L18-20C
L1820-FO

L18-20P
L1820-P
L1820-FI


3 ∅Y
277/480V

L19

L19-20R
L1920-R
L19-20C
L1920-FO

L19-20P
L1920-P
L1920-FI


3 ∅Y
347/600V

L20

L20-20R
L2020-R
L20-20C
L2020-FO

L20-20P
L2020-P
L2020-FI



Voltage

Type

30 Amperes

Receptacle
Plug
4 POLE, 4 WIRE, UNGROUNDED

3 ∅Y
120/208V

L18

L18-30R
L1830-R
L18-30C
L1830-FO

L18-30P
L1830-P
L1830-FI


3 ∅Y
277/480V

L19

L19-30R
L1930-R
L19-30C
L1930-FO

L19-30P
L1930-P
L1930-FI


3 ∅Y
347/600V

L20

L20-30R
L2030-R
L20-30C
L2030-FO

L20-30P
L2030-P
L2030-FI




4 Pole, 5 Wire, Grounded Twist Lock

Voltage

Type

15 Amperes

Receptacle
Plug
4 POLE, 5 WIRE, GROUNDED

3 ∅Y
120/208V

L21

3 ∅Y
277/480V

L22

3 ∅Y
347/600V

L23


Voltage

Type

20 Amperes

Receptacle
Plug
4 POLE, 5 WIRE, GROUNDED

3 ∅Y
120/208V

L21

L21-20R
L2120-R
L21-20C
L1820-FO

L21-20P
L2120-P
L2120-FI


3 ∅Y
277/480V

L22

L22-20R
L2220-R
L22-20C
L2220-FO

L22-20P
L2220-P
L2220-FI


3 ∅Y
347/600V

L23

L23-20R
L2320-R
L23-20C
L2320-FO

L23-20P
L2320-P
L2320-FI



Voltage

Type

30 Amperes

Receptacle
Plug
4 POLE, 5 WIRE, GROUNDED

3 ∅Y
120/208V

L21

L21-30R
L2130-R
L21-30C
L2130-FO

L21-30P
L2130-P
L2130-FI


3 ∅Y
277/480V

L22

L22-30R
L2230-R
L22-30C
L2230-FO

L22-30P
L2230-P
L2230-FI


3 ∅Y
347/600V

L23

L23-30R
L2330-R
L23-30C
L2330-FO

L23-30P
L2330-P
L2330-FI



Available Locking Plugs, Receptacles, and Connectors

Turnlok® Twist Lock Locking Plugs

nema turnloc twist lock locking plug

Shop Locking Plugs

Turnlok® Twist Lock Locking Receptacles

NEMA Turnlock Twist Lock Locking Receptacle

Shop Locking Receptacles

Turnlok® Twist Lock Locking Connectors

NEMA Turnlock Twist Lock Locking Connector

Shop Locking Connectors

Warning: When using this information to perform electrical work, call a licensed electrician or consult the NEC® for safety. All licensed electricians have passed examinations covering the National Electric Code®, know state and local building codes, and may carry insurance to cover damages.