18/12 AWG Wire | McMaster-Carr

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18 Products

About Wire and Cable

Compare wire vs. cable and choose the right option based on gauge, number of conductors, insulation, and current rating.

Performance

Abrasion Resistant

Prevents wear and tear in rough areas with a rugged jacket

10 products

Tear Resistant

Sharp metal edges won't slice through the cable jacket

6 products

Performance

Oil Resistant

Won’t crack or swell if exposed to grease, coolants, and fuels

10 products

Chemical Resistant

Withstands acids and other harsh chemicals

16 products

Continuous-Flex Control Cable


Unshielded	Shielded

Even after millions of flex cycles, this cable transmits reliable signals. Its finely stranded conductors are twisted together like a rope to resist wear from constant bending. Use it in moving equipment such as cable carriers.

Unshielded—Choose unshielded wires when electromagnetic interference (EMI) isn't a concern. Equipment such as motors and pumps may have voltage fluctuations and current spikes that distort signals.

Shielded—A single layer of shielding protects sensitive electronics and control systems by blocking electromagnetic interference (EMI). Otherwise, equipment such as motors and pumps could distort signals.

				Outer Jacket								Per Ft.
	Cable AWG	Current @ Temp.	Bend Radius	Material	Color	Temp., ° F	Flammability Rating	Certification	Clean Room Std.	Choose a Length, ft.		1-99	100-Up
300V AC







				Unshielded

				18/12	13 amp @ 86° F	3.23"	PVC	Gray	25 to 155	NFPA 79, UL 2556 VW-1	C-UL Recognized Component, CE Marked, UL Recognized Component	ISO Class 1	5 , 10 , 20 , 30 , 50 , 100	8082K22	00000	00000




						Shielded

						18/12	8 amp @ 86° F	3.83"	PVC	Gray	25 to 155	NFPA 79, UL 2556 VW-1	C-UL Recognized Component, CE Marked, UL Recognized Component	ISO Class 1	5 , 10 , 20 , 30 , 50 , 100	8082K43	0000	0000


						600V AC







										Unshielded

										18/12	7 amp @ 86° F	3.33"	PVC	Green	25 to 155	UL 2556 VW-1	C-UL Recognized Component, UL Recognized Component	ISO Class 2	5 , 10 , 20 , 30 , 50 , 100	7673K25	0000	0000


										18/12	7 amp @ 86° F	3.38"	PVC	Black	45 to 190	UL 2556 VW-1	CSA Certified, UL Recognized Component	—	5 , 10 , 20 , 30 , 50 , 100	9204K19	00000	00000




												Shielded

												18/12	7 amp @ 86° F	4.35"	PVC	Black	45 to 190	UL 2556 VW-1	CSA Certified, UL Recognized Component	—	5 , 10 , 20 , 30 , 50 , 100	9204K59	00000	00000


												18/12	12 amp @ 86° F	3.74"	PVC	Green	25 to 155	UL 2556 VW-1	C-UL Recognized Component, UL Recognized Component	ISO Class 2	5 , 10 , 20 , 30 , 50 , 100	7673K46	0000	0000

No-Conduit-Required Control Cable

Unshielded

Double Shielded

Made to TC-ER (Tray Cable, Exposed Run) standards, this crush- and impact-resistant cable eliminates the cost and hassle of installing conduit. It’s ideal for exposed runs, such as from a cable tray down to a control panel or motor control box. Support it every six feet to prevent sagging. You can flex and bend this cable during installation and adjustments, but it isn't made for continuous motion.

Double Shielded—With two layers of shielding, this cable offers better protection against electromagnetic interference (EMI) than single-shielded cable. It’s often used near transformers, generators, and heavy-duty motors that may have voltage fluctuations and current spikes that distort signals.

			Outer Jacket								Per Ft.
	Cable AWG	Current @ Temp.	Material	Color	Cable Designation	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-99	100-Up
600V AC







				Unshielded

				18/12	7 amp @ 86° F	PVC	Black	TC-ER	-10 to 190	UL 2556 FT4	C-UL Listed, CSA Certified, UL Listed	10 , 20 , 30 , 50 , 100 , 250	6452T46	00000	00000




						Double Shielded

						18/12	7 amp @ 86° F	PVC	Black	TC-ER	-10 to 190	UL 2556 FT4	C-UL Listed, CSA Certified, UL Listed	10 , 20 , 30 , 50 , 100	6452T56	0000	0000

Space-Saving Control Cable

Unshielded

Double Shielded

This cable is about two-thirds the diameter of other control cables of the same gauge, so you can fit more cables into the same footprint. The mPPE (modified polyphenylene ether) outer jacket is half the weight of other materials, but still abrasion and tear resistant. This cable controls, monitors, and regulates stationary equipment such as sensors and PLCs. You can flex and bend it during installation and adjustments, but it isn't made for continuous motion.

			Outer Jacket							Per Ft.
	Cable AWG	Current @ Temp.	Material	Color	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-99	100-Up
600V AC







				Unshielded

				18/12	4 amp @ 86° F	mPPE	Gray	-40 to 220	UL 2556 VW-1	C-UL Listed, UL Listed	5 , 10 , 20 , 30 , 50	6650T22	000000	000000




						Double Shielded

						18/12	4 amp @ 86° F	mPPE	Gray	-40 to 220	UL 2556 VW-1	C-UL Listed, UL Listed	5 , 10 , 20 , 30 , 50	6650T38	00000	00000

Control Cable

Unshielded

Shielded

Control, monitor, and regulate stationary equipment such as sensors and PLCs. You can flex and bend this cable during installation and adjustments, but it isn't made for continuous motion.

			Outer Jacket							Per Ft.
	Cable AWG	Current @ Temp.	Material	Color	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-99	100-Up
600V AC







				Unshielded

				18/12	7 amp @ 86° F	PVC	Gray	45 to 190	UL 2556 VW-1	CSA Certified, UL Recognized Component	10 , 20 , 30 , 50 , 100	9936K22	00000	00000




						Shielded

						18/12	7 amp @ 86° F	PVC	Gray	45 to 190	UL 2556 VW-1	CSA Certified, UL Recognized Component	10 , 20 , 30 , 50 , 100	9936K62	00000	0000

Long-Life Continuous-Flex Control Cable

Replace cables in your moving equipment less frequently. Often used in cable carriers, this cable lasts 20 million flex cycles, at least twice as long as most other continuous-flex cable. A rugged polyurethane jacket protects it from abrasion and exposure to chemicals, oil, and moisture. This cable maintains reliable signals despite the demands of continuous motion. Inside, finely stranded conductors are twisted together like a rope to strengthen the cable and prevent fatigue from constant bending.

				Outer Jacket					Per Ft.
	Cable AWG	Current @ Temp.	Bend Radius	Material	Color	Temp., ° F	Choose a Length, ft.		1-99	100-Up
300V AC







				Unshielded

				18/12	7 amp @ 86° F	3.08"	Polyurethane Rubber	Gray	-30 to 175	5 , 10 , 20 , 30 , 50 , 100	9221K54	000000	000000

No-Conduit-Required Continuous-Flex Control Cable

Unshielded

Shielded

Eliminate the need for conduit and cable splices. Made to TC-ER (Tray Cable, Exposed Run) standards, this cable resists impact and crushing force. You can run a single length from stationary equipment to and through moving equipment, such as cable carriers. Support it every six feet to prevent sagging. Even after millions of flex cycles, this cable transmits reliable signals. Its finely stranded conductors are twisted together like a rope, strengthening the cable and preventing fatigue from constant bending.

				Outer Jacket								Per Ft.
	Cable AWG	Current @ Temp.	Bend Radius	Material	Color	Cable Designation	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-99	100-Up
600V AC







				Unshielded

				18/12	7 amp @ 86° F	4"	PVC	Gray	TC-ER	25 to 175	UL 2556 FT4	CSA Certified, UL Listed	10 , 20 , 30 , 50 , 100	9700T12	000000	000000




						Shielded

						18/12	7 amp @ 86° F	5.7"	PVC	Gray	TC-ER	25 to 175	UL 2556 FT4	CSA Certified, UL Listed	10 , 20 , 30 , 50 , 100	9700T42	00000	00000

Continuous-Twist and -Flex Control Cable

Unshielded

Ideal for multi-axis, torsional, and bending movements, this cable is often used in robot arms. It will endure millions of flex cycles while sending reliable signals, even when it's twisting. Internally, fine strands of conductors are twisted together like a rope, resisting fatigue from constant bending. On the outside, a rugged polyurethane jacket resists abrasion, chemicals, oil, and moisture.

				Outer Jacket							Per Ft.
	Cable AWG	Current @ Temp.	Bend Radius	Material	Color	Temp., ° F	Flammability Rating	Certification	Choose a Length, ft.		1-99	100-Up
600V AC







				Unshielded

				18/12	7 amp @ 86° F	6"	Polyurethane Rubber	Black	-40 to 175	UL 2556 VW-1	CSA Certified, UL Recognized Component	10 , 20 , 30 , 50 , 100	8559K47	000000	000000

Abrasion-Resistant Continuous-Flex Control Cable

Unshielded

Shielded

Prevent wear and tear in rough areas and conditions. Unlike other continuous-flex control cables, the rugged polyurethane jacket on this cable protects against abrasion as well as exposure to chemicals, oil, and moisture. It’s often used in cable carriers in high-production CNC machines that need reliable signals for millions of flex cycles. Its finely stranded conductors are twisted together like a rope to resist wear from constant bending.

				Outer Jacket								Per Ft.
	Cable AWG	Current @ Temp.	Bend Radius	Material	Color	Temp., ° F	Flammability Rating	Certification	Clean Room Std.	Choose a Length, ft.		1-99	100-Up
1,000V AC







				Unshielded

				18/12	8 amp @ 86° F	3.2"	Polyurethane Rubber	Gray	-30 to 175	UL 2556 VW-1	C-UL Recognized Component, UL Recognized Component	ISO Class 1	5 , 10 , 20 , 30 , 50 , 100	8082K63	00000	00000




						Shielded

						18/12	8 amp @ 86° F	3.6"	Polyurethane Rubber over TPE	Gray	-30 to 175	UL 2556 VW-1	C-UL Recognized Component, UL Recognized Component	ISO Class 1	5 , 10 , 20 , 30 , 50 , 100	8082K84	00000	00000