100 ft. Extension Cords | McMaster-Carr

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68 Products

About Extension Cords

Find the right wire gauge based on your application, power draw, and cord length.

Extension Cords

Your go‑to choice for powering tools and equipment in industrial workplaces, job sites, and maintenance shops. These extension cords meet NEC Article 400 requirements for hard service, so they withstand everyday wear and tear.

Power Indicator—A light indicates that power is flowing through the cord.

	AWG	Current, amp	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 5-15 Plug × Socket—125V AC







			Black

			100	14	13	SJTOW	Yes	—	UL Listed	7438K255	0000000


			100	14	13	SJOOW	Yes	Power	ETL Listed	9581T13	000000
			100	12	15	SJTW	Yes	—	UL Listed	9581T19	000000
			100	12	15	SJOOW	Yes	Power	C-ETL Listed, ETL Listed	5776K39	000000
			100	10	15	SJTOW	Yes	—	UL Listed	7438K259	000000
			100	10	15	SJEOW	Yes	Power	UL Listed	9581T34	000000




					Blue

					100	16	10	SJEOW	Yes	—	UL Listed	6953K13	000000


					100	14	13	SJEOW	Yes	—	UL Listed	6953K16	000000
					100	12	15	SJTW	Yes	Power	UL Listed	8208K81	000000
					100	12	15	SJEOW	Yes	—	UL Listed	6953K18	000000




							Blue/Red

							100	12	15	SJTW	Yes	Power	UL Listed	8208K63	000000




									Blue/White

									100	14	13	SJEOW	Yes	Power	UL Certified	5776K29	000000




											Blue/Yellow

											100	14	13	SJTW	Yes	—	ETL Listed	7438K247	000000




													Dark Green

													100	16	10	SJTW	Yes	—	UL Listed	7438K93	000000




															Fluorescent Blue

															100	12	15	SJTW	Yes	Power	ETL Listed	7438K254	000000




															Fluorescent Green

	100	14													13	SJTW	Yes	Power	UL Listed	7438K251	000000


	100	12													15	SJTW	Yes	Power	ETL Listed	8208K42	000000
	100	10													15	SJTW	Yes	Power	UL Listed	7438K252	000000




															Fluorescent Green/Red

															100	10	15	SJTW	Yes	Power	UL Listed	8208K93	000000




															Fluorescent Pink

															100	12	15	SJTW	Yes	Power	ETL Listed	8208K46	000000




																	Fluorescent Red

					100												12	15	SJTW	Yes	Power	ETL Listed	8208K83	000000




																	Green

							100										14	13	SJOW	Yes	Power	UL Listed	8146K43	000000


							100	12									15	SJOW	Yes	Power	UL Listed	8146K46	000000




									Green/Yellow

									100	12							15	SJTW	Yes	Power	UL Listed	8208K62	000000




											Orange

											100	16					10	SJTW	Yes	—	UL Listed	7438K35	00000


											100	14					13	SJTW	Yes	—	UL Listed	7438K84	000000
											100	12					15	SJTW	Yes	—	UL Listed	7438K43	000000




													Orange/Blue

100													12	15			SJTW	Yes	Power	UL Listed	8208K65	000000




													Pink/Fluorescent Green

													100	12			15	SJTW	Yes	Power	UL Listed	8208K64	000000




		Red

		100												14			13	SJTW	Yes	—	UL Listed	7438K296	000000


		100												14			13	SJTW	Yes	Power	UL Listed	7438K297	000000




				Red/White

				100										12			15	SJTW	Yes	Power	UL Listed	7438K95	000000




															Yellow

															100	16	10	SJEOW	Yes	Power	UL Listed	8047K63	00000


					100										14	13	SJEOW	Yes	Power	UL Listed	8047K66	000000
					100	12									15	SJTW	Yes	Power	UL Listed	7438K28	000000
					100	12									15	SJEOW	Yes	Power	UL Listed	8047K69	000000
					100	10									15	SJTW	Yes	Power	UL Listed	7438K85	000000
					100	10									15	SJEOW	Yes	Power	UL Listed	8047K73	000000

Multi-Outlet Extension Cords

Keep your work area organized with a single cord to power multiple machines. These extension cords are often used to declutter maintenance benches and assembly lines, as well as reduce tripping hazards.

Power Indicator—A light indicates that power is flowing through the cord.

Ground-Presence Indicator—A light indicates that the cord is properly grounded.

								3 Outlets
	Lg., ft.	AWG	Current, amp	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 5-15 Plug × Socket—125V AC







				Blue/Orange

				100	12	15	SJEOW	Yes	Power	UL Listed	9574T23	0000000




						Fluorescent Blue

						100	12	15	SJTW	Yes	Power and Ground Presence	UL Listed	6786K32	000000




								Fluorescent Red

								100	12	15	SJTW	Yes	Power and Ground Presence	UL Listed	6786K42	000000




										Orange

										100	14	13	SJTW	Yes	—	UL Listed	7468K13	00000




												Yellow

												100	12	15	SJEOOW	Yes	Power	UL Listed	7468K44	000000


												100	10	15	SJEOOW	Yes	Power	UL Listed	7468K54	000000

Abrasion-Resistant Extension Cords

Our most durable extension cords. Built to NEC Article 400 standards for extra-hard service, these cords resist wear that could expose conductors and compromise safety. Their thick jacket protects against scrapes from rough surfaces.

Power Indicator—A light indicates that power is flowing through the cord.

	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 5-15 Plug × Socket—125V AC







	Orange

	100	14	13	STW	Yes	—	UL Listed	7522K53	0000000


	100	12	15	STW	Yes	—	UL Listed	7522K77	000000




			Yellow

			100	14	13	SEOW	Yes	Power	UL Listed	7522K63	000000


			100	12	15	SEOW	Yes	Power	UL Listed	7522K66	000000


			NEMA 5-20 Plug × Socket—125V AC







							Yellow

							100	12	20	SOOW	Yes	—	UL Listed	5839K58	000000

Abrasion-Resistant Turn-Lock Extension Cords

Power devices in rough areas with heavy vibration. These extension cords have quarter-turn locking connectors that won't shake loose. Built to NEC Article 400 standards for extra-hard service, these cords resist wear that could expose conductors and compromise safety. Their thick jacket protects against scrapes on rough surfaces.

	Cable Designation	For Use Outdoors	Certification		Each
NEMA L14-30 Plug × Socket—125V AC/250V AC







	Yellow

	100	10	30	STW	Yes	C-UL Listed, UL Listed	5839K81	0000000

Locking Extension Cords

Keep power flowing in high-vibration areas. These extension cords have a lever that securely locks a straight-blade plug in the outlet, preventing the socket from shaking loose.

Power Indicator—A light indicates that power is flowing through the cord.

	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 5-15 Plug × Socket—125V AC







	Blue/Orange

	100	14	13	SJEOW	Yes	Power	ETL Listed, UL Listed	8208K18	0000000


	100	12	15	SJEOW	Yes	Power	UL Listed	8208K34	000000
	100	10	15	SJEOW	Yes	Power	UL Listed	8208K98	000000




			Blue/Red

			100	12	15	SJTW	Yes	Power	C-ETL Listed, ETL Listed	9609T4	000000




					Yellow

					100	14	13	SJTW	Yes	Power	C-ETL Listed, ETL Listed	9609T3	000000

GFCI Multi-Outlet Extension Cords


Inline GFCI	Plug GFCI

A single cord runs electricity to multiple devices while protecting workers and equipment from electric shock. These extension cords have a GFCI to cut power instantly when they detect a fault. Multiple outlets help reduce clutter at workbenches and assembly stations.

Inline GFCI—The GFCI sits along the cord for easy access when you need to reset it. However, it doesn't protect the length of cord between the outlet and the GFCI.

Plug GFCI—The GFCI is built into the plug, so it protects the full length of the cord. However, the plug is bulky and might not fit in tight spaces.

Automatic Reset—Immediately regain power after a fault clears. Not recommended for wet, outdoor, and critical environments where repeated faults might signal a hazard.

Manual Reset—Prevent unexpected start-up by cutting electricity until you press a reset button. Choose these cords for job sites, workshops, and outdoor areas where moisture and equipment faults are common.

Power Indicator—A light indicates that power is flowing through the cord.

									3 Outlets
	Lg., ft.	Color	AWG	Current, amp	Cable Designation	For Use Outdoors	Light Indicator Type	Certification		Each
NEMA 5-15 Plug × Socket—120V AC







				Inline GFCI—Automatic Reset

				100	Yellow	12	15	SJTW	Yes	Power	C-UL Listed, UL Listed	73495K22	0000000


				NEMA 5-15 90° Elbow Plug × Socket—120V AC







								Plug GFCI—Manual Reset

								100	Yellow	12	15	SJTW	Yes	—	CSA Certified, UL Listed	73495K15	000000

Turn-Lock Extension Cords

Lock these cords in place with a quarter turn. They won't disconnect accidentally in high-vibration environments, such as on assembly lines and heavy machinery. These cords meet NEC Article 400 requirements for hard service, so they withstand everyday wear and tear.

	Cable Designation	For Use Outdoors	Certification		Each
NEMA L5-20 Plug × Socket—125V AC







	Yellow

	100	12	15	SJTW	Yes	UL Listed	8049K22	0000000

Light Duty Extension Cords

Power light fixtures and other small appliances with these extension cords. They have a flat profile, so they run neatly along walls and baseboards.

	Cable Designation	For Use Outdoors		Each
NEMA 5-15 Plug × Socket—125V AC







	Gray

	100	12	15	SPT-3	No	7469K103	0000000

Duct-Rated HDMI Video Cords

Run high-definition signals through duct, above drop ceilings, and below raised floors without using conduit. These cords are plenum rated, so their insulation resists fire and doesn’t produce smoke. Connect these cords to monitors, TVs, and projectors. Each end has both a standard HDMI plug and a micro-HDMI socket, so you can connect multiple devices to the cord at once. The plugs are gold plated to resist corrosion and maintain signals over time.

Note: These cords only transmit signals in one direction. Ends are labeled “Source” or “Display” to help you install the cord.

Standard HDMI Male Plug and Micro HDMI Female Socket × Standard HDMI Male Plug and Micro HDMI Female Socket

	Cord OD	Cable Designation	Color		Each
Flexible



	100	0.21"	CMP	Black	5593N14	0000000

Shielded Ethernet Cords

The shielding on these cords blocks signal interference from nearby equipment and devices. They send data between computers, printers, servers, and switches. For faster data transmission speeds, choose a cord with a higher ethernet cable category. They’re backward compatible, so they work in networks that meet the same or a lower category.

Straight RJ45 Plug × Straight RJ45 Plug

Image of Product. Front orientation. Ethernet Cords. Shielded Ethernet Cords, Straight End, Plug.

Braided Shield—Cords with braid and foil shielding have better protection than cords with only foil shielding, which is especially important for higher transmission speeds or longer lengths of cord. However, the added shielding increases cord diameter and reduces flexibility.

	Transmission Freq., MHz	AWG	Cord OD	Temp. Range, ° F	Choose a Color		Each
Category 5e Ethernet Cable with Foil Shield



	100	100	26	0.22"	15 to 140	Black, Green, Red, Yellow	7734T632	0000000


	100	350	26	0.22"	15 to 140	Blue	7734T31	000000


	Category 6A Ethernet Cable with Foil Shield



			100	550	26	0.24"	15 to 140	Blue	4172T141	000000


			100	550	26	0.24"	35 to 140	Black, Gray	4172T212	000000


			Category 7 Ethernet Cable with Braided and Foil Shield



					100	600	26	0.24"	35 to 140	Blue	4172T317	000000

Ethernet Cords

These Ethernet cords are backward compatible, so they work in networks that meet the same or a lower ethernet cable category. They send data between computers, printers, servers, and switches.

Straight RJ45 Plug × Straight RJ45 Plug

Image of Product. Front orientation. Ethernet Cords. Ethernet Cords, Straight End, Plug.

Cord OD	Shielding	Temp. Range, ° F	Choose a Color		Each







Category 5e Ethernet Cable

100	350	24	0.21"	Unshielded	35 to 140	Black, Blue	9953K82	000000




		Category 6 Ethernet Cable

		100	550	24	0.24"	Unshielded	35 to 140	Black, Blue	4172T88	00000

Video Monitor Cords

All cords have HD15 connectors to transmit video to monitors. Shielding blocks signal interference from nearby equipment and devices.

HD15 Plug × HD15 Plug

	For Video Resolution	Shield Type	Color		Each
Double Shielded



	100	2048 × 1536	Braid, Foil	Black	8041T14	000000