1-15 Extension Cords | McMaster-Carr

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About Industry Designation for Cable Insulation

About Extension Cords

About NEMA Plugs, Sockets, and Receptacles

About AC to AC Voltage Transformers

For single-phase equipment, use this formula to find power output: VA = Volts × Amps

For three-phase equipment, use this formula to find power output: VA = Volts × Amps × 1.73

Light Duty Multi-Outlet Extension Cords

Designed for indoor applications, these cords are often used to power multiple appliances from one outlet.

Cords with a 90° elbow plug fit flush against a wall outlet, so they fit behind machinery or in areas where space is tight.

SPT cords have a flat cord shape so they fit in tight spaces.

90° Elbow Plug × Socket with Twist Cover

90° Elbow Plug × Socket with Attached Cover

NEMA 1-15 Plug

NEMA 1-15 Socket

							Cord
Lg., ft.	Features	No. of Outlets	Wire Gauge	Current, A	Voltage	Power-Indicating Light	Wd.	Insulation Material	Industry Designation	Specifications Met	Color		Each
90° Elbow NEMA 1-15 Plug × NEMA 1-15 Socket
3	Twist Cover	3	16	13	125V AC	Without Power-Indicating Light	0.31"	PVC Plastic	SPT-2	UL Listed	White	00000000	00000
7	Attached Cover	3	16	13	125V AC	Without Power-Indicating Light	0.3"	PVC Plastic	SPT-2	UL Listed	White	00000000	0000
7	Attached Cover	3	16	13	125V AC	Without Power-Indicating Light	0.31"	PVC Plastic	SPT-2	UL Listed	Beige	00000000	0000
7	Twist Cover	3	16	13	125V AC	Without Power-Indicating Light	0.31"	PVC Plastic	SPT-2	UL Listed	White	00000000	0000
13	Attached Cover	3	16	13	125V AC	Without Power-Indicating Light	0.3"	PVC Plastic	SPT-2	UL Listed	White	00000000	0000
13	Twist Cover	3	16	13	125V AC	Without Power-Indicating Light	0.31"	PVC Plastic	SPT-2	UL Listed	White	00000000	00000

Power Cords

Plug × Wire Leads

NEMA 1-15 Plug

SJEOW cords have an oil- and water-resistant insulation.

The insulation on SJTW cords resists water.

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA 1-15 Plug × Wire Leads
16	13	125V AC	6	0.31"	Rubber	SJEOW	-55° to 220°	UL Listed	Black	0000000	000000
16	13	125V AC	6	0.32"	PVC Plastic	SJTW	-40° to 140°	UL Listed, C-UL Listed	Black	00000000	0000
16	13	125V AC	9	0.31"	Rubber	SJEOW	-55° to 220°	UL Listed	Black	0000000	00000

Light Duty Power Cords

SPT

NEMA 1-15 Plug

Designed for indoor applications, these cords are often used to power appliances.

SPT cords have a flat cord shape so they fit in tight spaces. The numbers 1, 2, and 3 indicate the relative thickness of the insulation.

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	Wd.	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA 1-15 Plug × Wire Leads
18	10	125V AC	6	0.19"	PVC Plastic	SPT-1	0° to 140°	UL Listed, CSA Certified	Black	0000000	00000
18	10	125V AC	6	0.25"	PVC Plastic	SPT-2	0° to 140°	UL Listed, CSA Certified	Black	0000000	0000
18	10	125V AC	8	0.25"	PVC Plastic	SPT-2	0° to 140°	UL Listed, CSA Certified	Black	0000000	0000
18	10	125V AC	9	0.19"	PVC Plastic	SPT-1	0° to 140°	UL Listed, CSA Certified	Black	0000000	0000

Electronic Equipment Power Cords

NEMA Plug × IEC Socket

NEMA 1-15 Plug

IEC C7 Socket

IEC C17 Socket

Use these cords with computers, lab equipment, and office machines that have IEC connections.

SPT cords have a flat cord shape so they fit in tight spaces.

Use SJT cords in dry or damp environments.

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Wd.	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA 1-15 Plug × IEC C7 Socket
18	7	125V AC	6 1/2	__	0.25"	PVC Plastic	SPT-2	-30° to 220°	UL Listed, C-UL Listed, IEC 60320	Black	00000000	00000
NEMA 1-15 Plug × IEC C17 Socket
18	10	250V AC	6 1/2	0.3"	__	PVC Plastic	SJT	-40° to 140°	UL Listed, C-UL Listed, CSA Certified, IEC 60320	Black	00000000	00000

Equipment-Cooling Fan Power Cords

Plug × Socket

Plug × 45° Elbow Socket

Plug × 45° Elbow Socket with On/Off Thumb Control

Plug × 90° Elbow Socket

Plug × Multiple 45° Elbow Sockets

Fan Socket

NEMA 1-15 Plug

Plug these cords into fans that have quick-disconnect terminals. The industry designation is SPT, so they have a flat cord shape.

Cords with a 90° elbow socket fit flush against the fan, so they fit in tight spaces.

Cords with a 45° elbow socket fit close against the fan.

Cords with an on/off thumb control can be manually turned on and off to regulate equipment temperature. Those with a temperature switch turn a fan on when the temperature reaches 88° F and off when it falls to 80° F. They are not adjustable.

NEMA 1-15 Plug × Fan Socket
No. of Outlets	Socket End Shape	Voltage	Features	Lg., ft.	Cord Wd.	Industry Designation	Specifications Met	Color		Each
1	Straight	125V AC	__	3	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	00000
1	Straight	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	0000
1	45° Elbow	125V AC	__	3	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	0000
1	45° Elbow	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	0000
1	45° Elbow	125V AC	On/Off Thumb Control	3	0.2"	SPT-1	UL Listed, C-UL Listed	Black	000000000	0000
1	45° Elbow	125V AC	On/Off Thumb Control	6	0.2"	SPT-1	UL Listed, C-UL Listed	Black	000000000	0000
1	45° Elbow	125V AC	Temperature Switch	3	0.2"	SPT-1	UL Listed, CSA Certified	Green	000000000	00000
1	45° Elbow	125V AC	Temperature Switch	6	0.2"	SPT-1	UL Listed, CSA Certified	Green	000000000	00000
1	90° Elbow	125V AC	__	3	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	0000
1	90° Elbow	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	00000000	0000
2	45° Elbow	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	000000000	0000
3	45° Elbow	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	000000000	00000
4	45° Elbow	125V AC	__	6	0.2"	SPT-1	UL Listed, CSA Certified	Black	000000000	00000

Milwaukee Tool Power Cords

NEMA 1-15 Plug

48-76-5010 and
48-76-5025
Socket

Use these cords with any Milwaukee tool with a pin socket (Quik-Lok) connection.

NEMA 1-15 × Milwaukee Quik-Lok Socket
Manufacturer Model No.	Voltage	Lg., ft.	Cord OD	Color		Each
48-76-5010	125V AC	10	0.38"	Black	0000000	000000
48-76-5025	125V AC	25	0.38"	Black	0000000	00000

USB Chargers

NEMA 1-15 Plug

Power up mobile devices and other electronics.

Unlike many chargers in the market, these are high quality and reliable. All have passed strict U.S., Canadian, or European Union safety standards. Some of these chargers even have an LPS output, so if something fails inside the charger, it limits the risk of electrical shock. Most of our wall chargers also meet standards for energy efficiency when they're in-use, as well as when they're plugged in but not charging. Chargers that use switching regulation produce the stated voltage despite fluctuations in your outlet’s power and the power being drawn by your device. It also means they won’t get too hot.

USB-C chargers are quickly becoming the new standard, often seen on new phones and tablets. Some are USB-C Power Delivery 3.0 certified, so they charge your devices on average 3-4 times faster than standard chargers because they send more power over your cable. 18W chargers will power phones and tablets sold after 2016. 27W chargers will power small laptops. Choose chargers with an output greater than 27W to charge large laptops and other high-power devices.

USB-A chargers have the traditional USB connection. 5W chargers are typically used with small electronic devices such as speakers, routers, and cameras. 10.5W chargers are typically used with phones and tablets sold before 2016.

Chargers with a lithium-ion battery can power up to two mobile devices on the go.

Chargers cannot be sold to the listed areas due to energy efficiency regulations.

	Output
	USB Connection Type (Number of Ports)	Power	Voltage	Input Voltage	Cord Length, ft.	Low-Voltage Output Type	Regulation Type	Shock Protection Class	Features	Specifications Met	Cannot Be Sold To		Each
Straight-Blade NEMA 1-15 Plug
1	C (1)	18W	5V DC, 9V DC, 12V DC, 15V DC	100V AC-240V AC	__	__	Switching	II	USB-C Power Delivery 3.0	UL Listed, C-UL Listed, DOE Level VI Efficiency, EU CoC Tier 2 Efficiency, UL 2089	__	0000000	000000
1	C (1)	27W	5V DC, 9V DC, 12V DC, 15V DC	100V AC-240V AC	__	LPS	Switching	II	USB-C Power Delivery 3.0	UL Listed, C-UL Listed, DOE Level VI Efficiency, EU CoC Tier 2 Efficiency, UL 2089	__	0000000	00000
2	C (1)	60W	5V DC, 9V DC, 15V DC, 20V DC	100V AC-240V AC	__	__	__	__	USB-C Power Delivery 3.0	UL Listed	Canada	0000000	00000
3	C (1)	100W	5V DC, 9V DC, 15V DC, 20V DC	100V AC-240V AC	__	LPS	__	__	USB-C Power Delivery 3.0	UL Listed, DOE Level VI Efficiency	Canada	0000000	00000
4	A (1)	13W	5V DC	100V AC-240V AC	__	LPS	Switching	II	__	UL Listed, ETL Listed, UL 60601-1, DOE Level VI Efficiency	Canada	0000000	00000
5	A (1)	5W	5V DC	100V AC-240V AC	__	__	Switching	II	__	UL Listed, C-UL Listed, DOE Level VI Efficiency, EU CoC Tier 2 Efficiency, UL 2089	__	0000000	0000
6	A (1)	10.5W	5V DC	100V AC-240V AC	__	__	Switching	__	__	UL Listed, C-UL Listed, CE Marked, DOE Level VI Efficiency, UL 2089	__	0000000	00000
7	C (1) C (1)	20W 20W	5V DC, 9V DC, 12V DC 5V DC, 9V DC, 12V DC	100V AC-240V AC	__	LPS	__	__	__	UL Listed, DOE Level VI Efficiency	__	0000000	00000
8	A (1) A (1)	10.5W 5W	5V DC 5V DC	100V AC-240V AC	__	LPS	Switching	II	__	UL Listed, C-UL Listed, DOE Level VI Efficiency, UL 2089	__	0000000	00000
9	A (1) C (1)	12W 39W	5V DC 5V DC, 9V DC, 15V DC	100V AC-240V AC	__	LPS	__	__	__	UL Listed, DOE Level VI Efficiency	Canada	0000000	00000
10	A (3) C (1)	12W 60W	5V DC 20V DC	100V AC-240V AC	4	__	__	__	__	UL Listed, CE Marked	Canada	0000000	00000
11	C (1) A (4)	86W 12W	5V DC, 9V DC, 12V DC, 15V DC, 20V DC 5V DC	100V AC-240V AC	4	__	__	__	USB-C Power Delivery 3.0	UL Listed, C-UL Listed	Canada	0000000	000000
Straight-Blade NEMA 1-15 Plug with Rechargeable Lithium Ion (Li-Ion) Battery
9	A (1) C (1)	__	5V DC 5V DC	100V AC-240V AC	__	__	__	__	__	UL Listed, DOE Level VI Efficiency	CA, Canada	0000000	00000

Outlet Adapters

With Grounding Tab

NEMA 1-15 Plug

NEMA 5-15 Socket

Adapters with a grounding tab change a two-slot outlet to a three-slot outlet. Screw the grounding tab onto the outlet’s cover plate; the outlet must have a grounded path.

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

NEMA 1-15 Plug × NEMA 5-15 Socket
No. of Outlets	Current, A	Voltage	Material	Features	Specifications Met	Color		Each
1	15	125V AC	Plastic	Grounding Tab	UL Listed, C-UL Listed	Gray	0000000	00000

International Outlet Adapters

Use foreign devices in American outlets and American devices in foreign outlets.

Transformers


Transformer with NEMA 1-15 Plug × CEE 7/16 Socket	NEMA 1-15 Plug
Transformer with NEMA 1-15 Plug × CEE 7/16 Socket	CEE 7/16 Socket

Transformers step AC voltage up or down. Use them with devices that do not require constant operation, such as radios and battery chargers.

Voltage					Socket
Input	Output	Power Output, W	Frequency, Hz	Plug Country Compatibility	No. of Outlets	Country Compatibility		Each
NEMA 1-15 Plug × CEE 7/16 Socket
110V AC	220V AC	50	60	Canada Mexico United States	1	France Germany Italy Spain Switzerland	0000000	000000

Transformers with Plug Adapters

Transformer with Plug Adapters

CEE 7/16 Plug

NEMA 1-15 Socket

CEE 7/16 Socket

Transformers with plug adapters are not for use with devices that have electronic circuitry, such as devices with LEDs and automatic shut-offs. They have a selector switch to adjust the power output for low- and high-powered devices.

Voltage					Socket
Input	Output	Power Output, W	Frequency, Hz	Plug Country Compatibility	No. of Outlets	Country Compatibility	Includes		Each
CEE 7/16 and Universal Plug × NEMA 1-15 Socket
220V AC	110V AC	25/1,875	50	Argentina Australia Brazil Canada China France Germany Hong Kong Ireland Israel Italy Japan Mexico New Zealand South Africa Spain Switzerland United Kingdom United States	1	Canada Mexico United States	Carrying Case	0000000	000000

Plug Adapters

NEMA 1-15 Socket

Plug adapters attach to transformers for use in foreign outlets. They can also be used without a transformer on dual-voltage devices.

	Socket
Plug Country Compatibility	No. of Outlets	Country Compatibility		Each
Universal Plug × NEMA 1-15 Socket
Argentina Australia Brazil Canada China France Germany Hong Kong Ireland Israel Italy Japan Mexico New Zealand South Africa Spain Switzerland United Kingdom United States	1	Canada Mexico United States	0000000	000000

Caps for Outlets and Plugs

Cover unused electrical outlets or plug prongs to protect them from dust, dirt, liquids, and other contaminants.

Caps for Outlets

Outlet Cap

For NEMA Style	Material	Color	Pkg. Qty.		Pkg.
1-15, 5-15, 5-20	Plastic	Clear	12	000000	00000
1-15, 5-15, 5-20	Plastic	Yellow	12	000000	0000

Caps for Plugs

Cap for Two-Prong Plug

For Two Prongs
For NEMA Style	Material	Color	Pkg. Qty.		Pkg.
1-15	Plastic	Clear	10	0000000	00000

Space-Saver Straight-Blade Plugs

A good fit for tight spaces, these are smaller than standard straight-blade plugs, yet fit into standard-sized sockets and receptacles. Also known as NEMA midget plugs.

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

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

Two-Blade Plugs

NEMA 1-15 Male

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
1-15	125V AC	15A	1.3"	Screw Terminals	0.25"-0.7"	UL Listed, UL 94 HB, CSA Certified, Fed. Spec. W-C-596, UL 498	Black	0000000	000000

Two-Blade 90° Elbow Plugs

NEMA 1-15 Male

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
1-15	125V AC	15A	1.3"	Screw Terminals	0.25"-0.7"	UL Listed, UL 94 HB, CSA Certified, Fed. Spec. W-C-596, UL 498	Black	0000000	000000

Impact-Resistant Straight-Blade Plugs and Sockets

A rubber housing protects these connectors from damage caused by drops and impact. They are not intended for use in wet or damp environments.

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.

Two-Blade Plugs

NEMA 1-15 Male

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
1-15	125V AC	15A	1.5"	Screw Terminals	0.34"-0.64"	Yellow	00000000	000000

Two-Slot Sockets

NEMA 1-15 Female

Non-Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
1-15	125V AC	15A	1.5"	Screw Terminals	0.34"-0.64"	Yellow	00000000	000000