20 Wire Gauge Cable | McMaster-Carr

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	Number of Wires Number of Wires

	Wire Gauge Wire Gauge	Show

	Wire Gauge Wire Gauge	Hide

38
36
34
33
32
30
29
28
26
24
23
22
20
18
17
16
15
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
4/0
250 MCM
350 MCM
500 MCM

	Shielding Shielding

	Unshielded
	Shielded
	Double Shielded

	Wire Type Wire Type

	Stranded
	Solid

	System of Measurement System of Measurement

Inch

	Length Length

	Outer Insulation Color Outer Insulation Color

	Black
	Gray
	White
	Yellow
	Red
	Green
	Blue
	Orange
	Brown
	Purple
	Green/Yellow
	Clear
	Blue/White
	Pink
	Red/White
	Beige

	Flexibility Flexibility

	Cable AWG Cable AWG

	OD OD

	Use For Use For

Interference Shielding

Motors

Ovens and Furnaces

Panel and Equipment (Hook-
Up)

	Voltage Voltage

	Inner Insulation Color Inner Insulation Color

	Beige
	Black
	Blue
	Blue/Red
	Brown
	Gray
	Green
	Green/Yellow
	Orange
	Pink
	Purple
	Red
	White
	Yellow

	Inner Insulation Marking Inner Insulation Marking

Colored

Numbered

	Wire Material Wire Material

Copper

Steel

	Specifications Met Specifications Met

	Current Current

	Outer Insulation Material Outer Insulation Material

Cross-Linked Polyethylene
(XLPE)

	Wire Finish Wire Finish

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Connection End Connection End

	BNC Plug
	Stackable Banana Plug
	Two Alligator Clips
	Two Retractable Hooks
	Retractable Hook
	Two Retractable Banana Plugs
	Stackable Probe Tip
	Tweezer
	Two Stackable Banana Plugs
	Stackable Double Banana Plug

	Inner Insulation Material Inner Insulation Material

Plastic

Rubber

Mica

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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213 Products

About Wire and Cable

High-Temperature Cable

For high-heat applications such as furnaces and ovens, this cable's insulation withstands temperatures of 390° F and higher.

Abrasion-Resistant Cable

A thick rubber insulation resists cuts and abrasion, so this cable can be pulled over rough surfaces without damaging the wires inside.

Control Cable

Send signal and data to operate, measure, or regulate automated equipment such as conveyors and CNC machines.

Space-Saver Control Cable

Nearly two-thirds the diameter of standard control cable, this cable fits in tight spaces. It sends signal and data to operate, measure, or regulate automated equipment.

Continuous-Flex Cable

Often used in automated applications such as robotics and cable carriers, this cable withstands continuous motion without degrading data or signal transmission.

Oil-Resistant Continuous-Flex Cable

The insulation has excellent resistance to oil, so this cable can be used near motors. Often used in automated applications, it withstands continuous motion without degrading data or signal transmission

No-Conduit-Required Continuous-Flex Cable

Use this cable without conduit in automated applications—it meets crush and impact requirements for exposed runs in cable carriers, and withstands continuous motion without degrading data or signal transmission.

High-Voltage Continuous-Flex Flat Cable

Rated to 17,000 volts AC or higher, this cable is often used in oil drilling, robotics, and festoon systems. It withstands continuous motion without degrading data or signal transmission. The flat shape allows it to fit in tight spaces.

Space-Saver Continuous-Flex Cable

For use in tight spaces, this cable has up to a 40% smaller OD than standard continuous-flex cable. It withstands continuous motion without degrading data or signal transmission.

Continuous-Flex Data Communication Cable

Often used to send signal and data to order pickers and cranes, this cable withstands continuous motion applications without degrading data or signal transmission.

Industrial Communication-Standard Cable

Connect devices such as sensors, programmable logic controllers, and actuators to an automated network.

Coaxial Cable

Often used in radio transmission, network connections, and digital audio feed, this cable transmits audio, video, and data signals.

Duct-Rated Coaxial Cable

Also known as plenum cable, this cable has low-smoke insulation and can be used without conduit in ductwork and above a drop ceiling. Use it to transmit audio, video, and data signals.

Thermostat Cable

Hook up thermostats, air-conditioning units, and other low-voltage equipment.

Wire

Also known as hook-up wire, this wire is primarily used for wiring electrical panels, lighting, and plant floor equipment.

Mil. Spec. Wire

This wire meets stringent military specifications for material quality.

Wire Assortments

Keep spools of wire in multiple colors on hand.

Mil. Spec. Wire Assortments

Maintain a supply of Mil. Spec. wire in multiple colors.

Abrasion-Resistant Wire

A durable insulation withstands abrasion, so this wire can be pulled over rough surfaces.

Chemical-Resistant Wire

Our most chemical-resistant wire—the PTFE insulation protects against most chemicals, solvents, and oil.

Radiation-Resistant Wire

The PEEK insulation on this wire won't degrade when exposed to radiation, and is often used in nuclear energy production.

High-Temperature Wire

Use this wire in ovens, furnaces, and other electrical heating equipment where temperatures reach 480° F and higher.

Ultra-High-Voltage Wire

Use this wire in high-voltage applications that require 10,000 volts DC or greater, such as in high-power signs and lasers.

Space-Saver Wire

Nearly half the diameter and up to 40% lighter than standard wire of the same gauge and voltage, this wire fits in tight spaces.

Vehicle Wire

Also known as primary wire, this wire meets SAE standards for low-voltage wiring in trucks, boats, trailers, and other vehicles.

Vehicle Wire Assortments

Keep spools of vehicle wire in multiple colors on hand.

Continuous-Flex Wire

Often used in automated applications such as robotics, this wire withstands continuous motion without degrading data or signal transmission.

High-Voltage Continuous-Flex Wire

Use this wire in automated applications that require 14,000 volts A/C or greater. It withstands continuous motion without degrading data or signal transmission.

Motor Winding Wire

Also known as magnet wire, this wire is commonly used in motors, transformers, relays, and other high-speed winding applications.

Cords

Coaxial Cords

Transmit audio, video, and data signals over long distances with minimal signal loss.

Continuous-Flex Coaxial Cords

Often used in automated applications such as robotics, these cords withstand continuous motion without degrading data transmission.

Barrel-Style DC Power Cords

Carry DC power in or out of electronic devices with these cords. All have industry standard barrel-style connections, letting you power electronics from power supplies.

Barrel-Style DC Power Cord Splitters

Send DC power to multiple electronics from one source. With industry standard barrel-style connections, these splitters are compatible with many power supplies and other devices.

Patch Cords

Hook up electrical testing equipment and create test circuits.

BNC Test Cords

Connect oscilloscopes and other bench-top testers.

Thermocouple Wire

Make your own thermocouples.

Thermocouple Extension Wire

Designed to carry thermocouple signals over longer distances than standard thermocouple wire, this extension wire lengthens existing thermocouple connections.