L5-20 Extension Cords | McMaster-Carr

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44 Products

About Industry Designation for Cable Insulation

About NEMA Plugs, Sockets, and Receptacles

About Extension Cords

Plug × Socket

Plug × Socket × Socket

90° Plug with Handle × Socket

NEMA 5-15 Plug

NEMA L5-20 Socket

NEMA 5-20 Plug

NEMA 5-15 Socket

NEMA L5-20 Plug

NEMA L5-30 Plug

NEMA TT-30 Plug

Change the connection style between an outlet and your equipment.

NEMA TT-30 adapters are often used to power RVs.

Adapters with a 90° elbow plug sit flush against wall outlets to fit in tight spaces.

Adapters with a power-indicating light have a light on the socket that illuminates when the adapter has power.

Adapters with a handle make it easy to pull plugs out of sockets.

Use SJT adapters in dry or damp locations. STW and SJTW adapters have a water-resistant outer insulation. STOW and SJTOW adapters have an oil- and water-resistant outer insulation.

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

						Cord
Lg.	Wire Gauge	Current, A	Voltage	Power-Indicating Light	Features	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA 5-15 Plug × NEMA L5-20 Socket
9"	12	15	125V AC	Without Power-Indicating Light	__	0.56"	Rubber	STW	UL Listed	Yellow	0000000	000000
1 ft.	12	15	125V AC	Without Power-Indicating Light	__	0.61"	PVC Plastic	STW	UL Listed, C-UL Listed	Yellow	0000000	00000
NEMA 5-20 Plug × NEMA L5-20 Socket
1 ft.	12	20	125V AC	Without Power-Indicating Light	__	0.43"	PVC Plastic	SJT	__	Black	0000000	00000
NEMA L5-20 Plug × NEMA 5-15 Socket
9"	12	15	125V AC	Without Power-Indicating Light	__	0.56"	Rubber	STW	UL Listed	Yellow	0000000	00000
1 ft.	10	20	125V AC	With Power-Indicating Light	__	0.67"	PVC Plastic	STW	UL Listed, C-UL Listed	Yellow	0000000	00000
NEMA L5-30 Plug × NEMA L5-20 Socket
3 ft.	10	30	125V AC	Without Power-Indicating Light	__	0.67"	PVC Plastic	STOW	__	Yellow	0000000	00000
90° Elbow NEMA TT-30 Plug × NEMA L5-20 Socket
1 ft.	12	20	125V AC	With Power-Indicating Light	Handle	0.58"	PVC Plastic	SJTW	__	Purple	0000000	00000

Abrasion-Resistant Turn-Lock Extension Cords

NEMA L5-20 Plug

NEMA L5-20 Socket

Thick insulation protects the internal wires of these cords, so they can be used in high-traffic areas and over rough areas. The insulation also resists water. Give the connectors a quarter turn to lock in place; they remain secure in high-vibration applications.

					Cord
Lg., ft.	Wire Gauge	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L5-20 Plug × NEMA L5-20 Socket
25	10	20	125V AC	Without Power-Indicating Light	0.63"	PVC Plastic	STW	__	Yellow	0000000	000000
50	12	20	125V AC	Without Power-Indicating Light	0.435"	PVC Plastic	SJTW	UL Listed	Yellow	0000000	00000
50	10	20	125V AC	Without Power-Indicating Light	0.63"	PVC Plastic	STW	__	Yellow	0000000	000000
100	12	15	125V AC	Without Power-Indicating Light	0.44"	PVC Plastic	SJTW	UL Listed	Yellow	0000000	000000

Turn-Lock Extension Cords for Harsh Environments

NEMA L5-20 Plug

These cords have an oil- and water-resistant insulation and impact-resistant connectors for protection in harsh environments. Give the connectors a quarter turn to lock in place; they remaining secure in high-vibration applications.

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

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L5-20 Plug × NEMA L5-20 Socket
25	14	20	125V AC	Without Power-Indicating Light	0.52"	Rubber	SOOW	UL Listed	Yellow	0000000	0000000

Extension Cord Splitters

Power multiple devices from the same outlet with these splitters.

Two-outlet and three-outlet splitters plug into an outlet or extension cord. STW splitters have a water-resistant insulation.

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

Two-Outlet Splitters

Plug × Two Outlets

NEMA L5-20 Plug

NEMA L5-20 Socket

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L5-20 Plug × NEMA L5-20 Socket
1 1/2	12	20	125V AC	Without Power-Indicating Light	0.56"	Rubber	STW	UL Listed	Yellow	0000000	000000

Three-Outlet Splitters

Plug × Three Outlets

NEMA L5-20 Plug

NEMA L5-20 Socket

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L5-20 Plug × NEMA L5-20 Socket
1 1/2	12	20	125V AC	Without Power-Indicating Light	0.56"	Rubber	STW	UL Listed	Yellow	0000000	000000

Turn-Lock Power Cords

NEMA L5-20 Plug

The plug on these cords turns to lock in an outlet, so they remain securely attached in high-vibration applications.

					Cord
NEMA Style	Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA Plug × Wire Leads
L5-20	12	20	125V AC	8	0.44"	PVC Plastic	SJT	0° to 140°	UL Listed, C-UL Listed	Black	000000000	000000
L5-20	12	20	125V AC	12	0.42"	PVC Plastic	SJT	0° to 140°	UL Listed, C-UL Listed	Black	0000000	00000

Electronic Equipment Turn-Lock Power Cords

IEC C19 Socket

NEMA L5-20 Plug

Use these cords with computers, lab equipment, and office machines that have IEC connections. They have a plug that turns to lock in an outlet, so they remain securely attached in high-vibration applications.

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

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA L5-20 Plug × IEC C19 Socket
12	20	125V AC	8	0.16"	PVC Plastic	SJT	-40° to 140°	UL Listed, C-UL Listed, IEC 60320	Black	000000	000000

Outlet Strips

Provide power to multiple devices with these outlet strips. A circuit breaker prevents damage from current overload and short circuits.

The face of 360° outlets rotate a full circle.

Fasten mounting clips to a surface, and snap the channel on the back of outlet strips into the clips.

Outlet Strips

Standard Outlet Orientation

NEMA 5-15 Socket

NEMA L5-20 Plug

	No. of Sockets
Total No. of Outlets	NEMA 5-15	NEMA 5-20	Outlet Ctr.-to-Ctr.	Cord Lg., ft.	Current, A	Voltage	Features	Material	Protection Type	Includes	Specifications Met		Each
NEMA 5-15 and NEMA 5-20 Socket with NEMA L5-20 Plug
24	22	2	2 3/4"	15	20	125V AC	Lighted Power Switch	Aluminum	Circuit Breaker	Mounting Clips	UL Listed, C-UL Listed	00000000	0000000

Turn-Lock to Straight-Blade Adapters

NEMA 5-15 Plug x NEMA L5-20 Socket

NEMA 5-20 Plug x NEMA L5-20 Socket

NEMA L5-20 Plug × NEMA 5-20 Socket

NEMA 5-15 Plug

NEMA L5-20 Socket

NEMA 5-20 Plug

NEMA L5-20 Plug

Change a turn-lock to a straight-blade connection, or a straight-blade to a turn-lock connection.

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

NEMA 5-15 Plug × NEMA L5-20 Socket
No. of Outlets	Current, A	Voltage	Material	Specifications Met	Color		Each
1	15	125V AC	Rubber-Coated Plastic	UL Listed, CSA Certified	Red/Yellow	000000	0000000
NEMA 5-20 Plug × NEMA L5-20 Socket
1	20	125V AC	Rubber-Coated Plastic	UL Listed, CSA Certified	Yellow	00000000	000000
NEMA L5-20 Plug × NEMA 5-20 Socket
1	20	125V AC	Rubber-Coated Plastic	UL Listed, CSA Certified	Yellow	0000000	00000

Turn-Lock Plugs, Sockets, and Receptacles

A quarter turn locks these 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 L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L5-20	125V AC	20A	2.2"	Screw Terminals	0.23"-1.15"	UL Listed, CSA Certified	Black	0000000	000000

Three-Blade 90° Elbow Plugs

NEMA L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L5-20	125V AC	20A	2.6"	Screw Terminals	0.23"-1.15"	UL Listed	Black	000000	000000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L5-20	125V AC	20A	2.2"	Screw Terminals	0.23"-1.15"	UL Listed, CSA Certified	Black	0000000	000000

Premium Turn-Lock Plugs, Sockets, and Receptacles

Also known as twist-lock devices, these connectors are built to handle tough, repetitive-use applications, and are more durable than standard turn-lock connectors. A quarter turn locks them 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 L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color	Environmental Rating	Specifications Met		Each
L5-20	125V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	Black	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 94 HB, UL 498	0000000	000000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color	Environmental Rating	Specifications Met		Each
L5-20	125V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	Black	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 94 HB, UL 498	0000000	000000

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 L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
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	000000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
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	000000

Washdown Turn-Lock Connectors and Cords

When mated, connectors meet NEMA 6P for protection against corrosion and washdowns. All have a multiple-ring seal and rubber housing to keep out liquid. They resist heat, oil, and chemicals. A quarter turn locks them in place to remain secure in high-vibration applications and prevent accidental disconnection.

Plugs mate with female receptacles and female sockets with an attached cover.

Cord splitters power multiple devices from a single outlet.

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

Three-Blade Plugs

NEMA L5-20 Male

Plugs									Caps for Plugs
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each		Each
Grounded
L5-20	125V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	00000000	000000	000000000	000000
L5-20	125V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Black	000000000	00000	000000000	00000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L5-20	125V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	000000000	000000

Three-Slot Sockets with Attached Cover

NEMA L5-20 Female

Sockets									Replacement Caps for Sockets
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each		Each
Grounded
L5-20	125V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	00000000	000000	000000000	000000
L5-20	125V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Black	000000000	00000	000000000	00000

Cords—Three-Blade Plug × Three-Slot Socket with Attached Cover

NEMA L5-20 Female

NEMA L5-20 Male

Cords										Caps for Plugs		Replacement Caps for Sockets
NEMA Style	Voltage	Current	Wire Gauge	Cord OD	Industry Designation	End OD	Color		Each		Each		Each
25 ft. Lg.
Grounded
L5-20	125V AC	20A	14	0.57"	SOOW	2.5"	Yellow	00000000	0000000	000000000	000000	000000000	000000
50 ft. Lg.
Grounded
L5-20	125V AC	20A	14	0.57"	SOOW	2.5"	Yellow	00000000	000000	000000000	00000	000000000	00000

Cord Splitters—Three-Blade Plug × Three-Slot Socket with Attached Cover

NEMA L5-20 Female

NEMA L5-20 Male

Cord Splitters												Caps for Plugs		Replacement Caps for Sockets
NEMA Style	No. of Outlets	Voltage	Current	Wire Gauge	Cord OD	Industry Designation	End OD	Lg., ft.	Color		Each		Each		Each
Grounded
L5-20	2	125V AC	20A	12	0.65"	SOOW	2.5"	3	Yellow	00000000	0000000	000000000	000000	000000000	000000

Impact-Resistant Turn-Lock Connectors

A rubber housing protects these connectors from damage caused by drops and impact. Lock them in place with a quarter turn to remain secure in high-vibration applications and prevent accidental disconnection. Not intended for use in wet or damp environments.

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

Three-Blade Plugs

NEMA L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L5-20	125V AC	20A	1.9"	Screw Terminals	0.34"-0.64"	Yellow	0000000	000000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L5-20	125V AC	20A	1.5"	Screw Terminals	0.34"-0.64"	Yellow	0000000	000000

Corrosion-Resistant Turn-Lock Connectors

Stainless steel hardware and nickel-plated blades or slots protect connectors from damage in corrosive environments. A quarter turn locks them 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 L5-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
L5-20	125V AC	20A	2"	Screw Terminals	0.36"-0.93"	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 498, UL 94 HB	Yellow	0000000	000000

Three-Slot Sockets

NEMA L5-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
L5-20	125V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 498, UL 94 HB	Yellow	0000000	000000

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About Industry Designation for Cable Insulation

About NEMA Plugs, Sockets, and Receptacles

About Extension Cords

Extension Cord Adapters

Abrasion-Resistant Turn-Lock Extension Cords

Turn-Lock Extension Cords for Harsh Environments

Extension Cord Splitters

Turn-Lock Power Cords

Electronic Equipment Turn-Lock Power Cords

Outlet Strips

Turn-Lock to Straight-Blade Adapters

Turn-Lock Plugs, Sockets, and Receptacles

Premium Turn-Lock Plugs, Sockets, and Receptacles

Ground-Monitoring Turn-Lock Plugs and Sockets

Washdown Turn-Lock Connectors and Cords

Impact-Resistant Turn-Lock Connectors

Corrosion-Resistant Turn-Lock Connectors