Ground-Monitoring Plugs | McMaster-Carr

	Type Type


Plug	Socket

	NEMA Style NEMA Style


5-15	5-20	6-15

6-20	L5-15	L5-20

L5-30	L6-15	L6-20

L6-30	L7-15	L14-20

L14-30

	Current Current

15A

20A

30A

	Connection Type Connection Type


Straight Blade	Turn Lock

	Voltage Voltage

125V AC

250V AC

277V AC

	Number of Blades Number of Blades

	Number of Slots Number of Slots

	3		4

	Gender Gender

Male

Female

	OD OD

1.4"

1.5"

2.2"

	Specifications Met Specifications Met

Fed. Spec.

	For Maximum Cable OD For Maximum Cable OD

0.69"

0.72"

1.15"

	For Minimum Cable OD For Minimum Cable OD

0.23"

0.39"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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26 Products

About NEMA Plugs, Sockets, and Receptacles

Ground-Monitoring Straight-Blade Plugs and Sockets

Check the status of your ground connection—a green light signals that connectors have power and are safely grounded. A red light indicates power only. The lights are visible from any angle for quick identification.

Note: The current rating of your plug should not exceed that of your socket.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA 5-15 Male

NEMA 5-20 Male

NEMA 6-15 Male

NEMA 6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
5-15	125V AC	15A	1.4"	Screw Terminals	0.23"-0.72"	IP20	UL Listed, C-UL Listed, Fed. Spec. W-C-596	Black	0000000	000000
5-20	125V AC	20A	1.4"	Screw Terminals	0.23"-0.72"	IP20	UL Listed, C-UL Listed, Fed. Spec. W-C-596	Black	0000000	00000
6-15	250V AC	15A	1.4"	Screw Terminals	0.23"-0.72"	IP20	UL Listed, C-UL Listed, Fed. Spec. W-C-596	Black	0000000	00000
6-20	250V AC	20A	1.4"	Screw Terminals	0.23"-0.72"	IP20	UL Listed, C-UL Listed, Fed. Spec. W-C-596	Black	0000000	00000

Three-Slot Sockets

NEMA 5-15 Female

NEMA 5-20 Female

NEMA 6-15 Female

NEMA 6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Color		Each
5-15	125V AC	15A	1.4"	Screw Terminals	0.23"-0.72"	IP20	Black	0000000	000000
5-20	125V AC	20A	1.4"	Screw Terminals	0.23"-0.72"	IP20	Black	0000000	00000
6-15	250V AC	15A	1.4"	Screw Terminals	0.23"-0.72"	IP20	Black	0000000	00000
6-20	250V AC	20A	1.4"	Screw Terminals	0.23"-0.72"	IP20	Black	0000000	00000

Ground-Monitoring Turn-Lock Plugs and Sockets

Check the status of a ground connection—a green light signals that connectors have power and are safely grounded. A red light indicates power only. The lights are visible from any angle for quick identification. A quarter turn locks connectors in place to remain secure in high-vibration applications and prevent accidental disconnection.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L5-15 Male

NEMA L5-20 Male

NEMA L5-30 Male

NEMA L6-20 Male

NEMA L6-30 Male

NEMA L7-15 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L5-15	125V AC	15A	1.5"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L5-20	125V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L5-30	125V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L6-15	250V AC	15A	1.5"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L6-20	250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L6-30	250V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L7-15	277V AC	15A	1.5"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000

Four-Blade Plugs

NEMA L14-20 Male

NEMA L14-30 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L14-20	125V AC/250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L14-30	125V AC/250V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000

Three-Slot Sockets

NEMA L5-15 Female

NEMA L5-20 Female

NEMA L5-30 Female

NEMA L6-15 Female

NEMA L6-20 Female

NEMA L6-30 Female

NEMA L7-15 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L5-15	125V AC	15A	1.4"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L5-20	125V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L5-30	125V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L6-15	250V AC	15A	1.4"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L6-20	250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000
L6-30	250V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L7-15	277V AC	15A	1.4"	Screw Terminals	0.23"-0.69"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	00000

Four-Slot Sockets

NEMA L14-20 Female

NEMA L14-30 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L14-20	125V AC/250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000
L14-30	125V AC/250V AC	30A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000