CM Wire | McMaster-Carr

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	Number of Wires Number of Wires

	Shielding Shielding

	Unshielded
	Shielded
	Double Shielded

	Wire Gauge Wire Gauge

	Wire Type Wire Type

	Stranded

	Cable AWG Cable AWG

	Outer Insulation Color Outer Insulation Color

	Gray

	System of Measurement System of Measurement

Inch

	Length Length

	Shield Type Shield Type

	Braid
	Foil

	Inner Insulation Color Inner Insulation Color

	OD OD

	Flexibility Flexibility

	Flexible

	Voltage Voltage

300V AC

300V DC

	Inner Insulation Marking Inner Insulation Marking

Colored

	Industry Designation Industry Designation	Show

	Industry Designation Industry Designation	Hide

	Use For Use For

Buildings

Data

Interference Shielding

	Wire Finish Wire Finish

Bare

Tin Plated

	Wire Material Wire Material

Copper

	Outer Insulation Material Outer Insulation Material

Plastic

	Inner Insulation Material Inner Insulation Material

Plastic

	Minimum Temperature Minimum Temperature

-49° to 0° F

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

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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16 Products

About Wire and Cable

Communication and Security System Cable

Often used for intercoms, speakers, and security systems, this cable is designated as CM and CL2 or CMG, so the insulation is flame resistant and approved for in-wall installation in single-level facilities.

Use unshielded cable in applications where signal interference is not a concern.

Shielded cable has a layer of foil that blocks signal interference from nearby equipment and devices. It has an uninsulated ground wire is not counted in the number of wires.

Unshielded Stranded Wire

Unshielded

Use For: Buildings
Flexible
Temperature Range: 0° to 140° F
Insulation: PVC Plastic

300V AC/300V DC
Wire Ga.	No. of Wires	Cable AWG	OD	Outer Insulation Color	Inner Insulation Color	Industry Designation	Specifications Met		10 ft.	25 ft.	50 ft.	100 ft.	250 ft.
22	2	22/2	0.11"	Gray	Black, Red	CM, CL2	ETL Listed, C-ETL Listed	0000000	00000	000000	000000	000000	000000
22	4	22/4	0.13"	Gray	Black, Green, Red, White	CM, CL2	ETL Listed, C-ETL Listed	0000000	0000	00000	00000	00000	00000

Shielded Stranded Wire

Shielded

Use For: Buildings, Interference Shielding
Flexible
Temperature Range: 0° to 175° F
Insulation: PVC Plastic

										Per Ft.
Wire Ga.	No. of Wires	Cable AWG	OD	Outer Insulation Color	Inner Insulation Color	Features	Industry Designation	Length, ft.		1-99	100-Up
300V AC
24	6	24/6	0.21"	Gray	Black, Blue, Brown, Green, Red, White	Uninsulated Ground Wire	CM, CMG	10, 25, 50, 100, 200, 500	00000000	00000	00000
24	8	24/8	0.22"	Gray	Black, Blue, Brown, Green, Orange, Red, White, Yellow	Uninsulated Ground Wire	CM, CMG	10, 25, 50, 100, 500, 1,000	00000000	000	000
24	10	24/10	0.25"	Gray	Black, Blue, Brown, Gray, Green, Orange, Purple, Red, White, Yellow	Uninsulated Ground Wire	CM, CMG	10, 20, 25, 50, 100, 500	00000000	000	000
24	25	24/25	0.37"	Gray	Black, Black/Red, Black/White, Black/White/Red, Blue, Blue/Black, Blue/Red, Blue/White, Green, Green/Black, Green/Black/White, Green/White, Orange, Orange/Black, Orange/Green, Orange/Red, Red, Red/Black, Red/Black/White, Red/Green, Red/White, White, White/Black, White/Black/Red, White/Red	Uninsulated Ground Wire	CM, CMG	10, 20, 25, 50, 100, 500	00000000	0000	0000

Data Communication Cable

Use For: Data, Interference Shielding
Flexible
Temperature Range: 0° to 165° F
Insulation: PVC Plastic

Use this cable for complex data and signal transmission, such as in high-speed computers. It has braid and foil shielding that provides excellent protection against signal interference from nearby equipment and devices. The industry designation is CM and CMG, so it’s approved for in-wall installation and has flame-resistant insulation. It has an uninsulated ground wire that is not counted in the number of wires.

												Per Ft.
Wire Ga.	No. of Wires	Cable AWG	Transmission Speed, Mbps	Capacitance per Foot	OD	Industry Designation	Outer Insulation Color	Inner Insulation Color	Features	Length, ft.		1-99	100-Up
Double-Shielded Stranded Wire
300V AC
24	4	24/4	10	12.5 pF	0.23"	CM, CMG	Gray	Black, Green, Red, White	Uninsulated Ground Wire	10, 25, 50, 100, 200, 500	00000000	00000	00000
24	6	24/6	10	12.5 pF	0.27"	CM, CMG	Gray	Black, Blue, Brown, Green, Red, White	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	000	000
24	8	24/8	10	12.5 pF	0.28"	CM, CMG	Gray	Black, Blue, Brown, Green, Orange, Red, White, Yellow	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	000
24	10	24/10	10	12.5 pF	0.31"	CM, CMG	Gray	Black, Blue, Brown, Gray, Green, Orange, Purple, Red, White, Yellow	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	0000
24	15	24/15	10	12.5 pF	0.35"	CM, CMG	Gray	Black, Black/White, Blue, Blue/Black, Blue/White, Green, Green/Black, Green/White, Orange, Orange/Black, Red, Red/Black, Red/White, White, White/Black	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	0000
24	25	24/25	10	12.5 pF	0.4"	CM, CMG	Gray	Black, Black/Red, Black/White, Black/White/Red, Blue, Blue/Black, Blue/Red, Blue/White, Green, Green/Black, Green/Black/White, Green/White, Orange, Orange/Black, Orange/Green, Orange/Red, Red, Red/Black, Red/Black/White, Red/Green, Red/White, White, White/Black, White/Black/Red, White/Red	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	0000

Twisted-Pair Data Communication Cable

Use For: Data, Interference Shielding
Flexible
Temperature Range: 0° to 165° F
Insulation: PVC Plastic

This cable has twisted pairs of wires that cancel signal interference from multiple transmission lines, as well as foil and braid shielding over the entire cable. It's often used to transmit data in high speed computers near variable-frequency drive motors, where voltage fluctuations and current spikes can distort signals. The industry designation is CM and CMG, so it’s approved for in-wall installation and has flame-resistant insulation. The uninsulated ground wire is not counted in the number of wires.

											Per Ft.
Wire Ga.	No. of Wires	Cable AWG	Transmission Speed, Mbps	Capacitance per Foot	OD	Industry Designation	Outer Insulation Color	Features	Length, ft.		1-99	100-Up
Double-Shielded Stranded Wire
300V AC
24	4	24/4	10	12.5 pF	0.27"	CM, CMG	Gray	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	00000	00000
24	6	24/6	10	12.5 pF	0.28"	CM, CMG	Gray	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	000
24	10	24/10	10	12.5 pF	0.33"	CM, CMG	Gray	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	000
24	25	24/25	10	12.5 pF	0.48"	CM, CMG	Gray	Uninsulated Ground Wire	10, 25, 50, 100, 500	00000000	0000	0000