18 AWG Electrical Wire | McMaster-Carr

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American Wire Gauge (AWG)

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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DFARS Specialty Metals

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546 Products

Electrical Power, Networking, and Controlling

Lead Wire

Your go-to wire for everything from electrical panels to plant equipment; also known as hook-up wire

36 products

Power Cable

Deliver power to motors, pumps, appliances, computers, and more

58 products

Control Cable

Send signals to control machinery and automated systems

138 products

Vehicle Wire

Make connections in low-voltage vehicle wiring systems

19 products

Irrigation Cable

Supply low-voltage power in sprinkler systems

8 products

Security Cable

Connect low-current security and intercom systems

17 products

Power Cords

Connect equipment and devices to a power source

83 products

Vehicle Cable

Make multiple connections in low-voltage vehicle wiring systems

1 product

Thermostat Cable

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

6 products

Variable-Frequency Drive Motor Cable

Connect variable-frequency drive motors to equipment

4 products

Fieldbus Cable

Connect devices in Fieldbus communication networks

1 product

Building Wire

With designations such as THHN or THWN, building wire brings power to wall outlets and outlet boxes

2 products

Servo Cable

Connect servocontrollers and servomotors in automated equipment and on assembly lines

3 products

Fire Alarm Cable

Protected by flame-resistant insulation for critical circuits in fire alarm systems

8 products

Speaker Cable

Hook up speakers, intercoms, and other low-current devices to a building's wiring

1 product

Magnet Wire

Wind into coils for high-speed winding applications, such as motors, transformers, and relays

2 products

Coaxial Cable

Transmit audio, data, and video signals

2 products

DeviceNet Cable

Connect devices in DeviceNet communication networks

2 products

Metric Circular Cords

Send power and signal to equipment with metric connections

35 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

55 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

5 products

Extension Cords

Extend the reach of power from an outlet

3 products

Thermocouple Wire

Connect thermocouples to switches, controllers, recorders, and thermometers

2 products

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

2 products

Metric Circular Receptacles

Install in walls and panels and pair with plugs to make metric connections

28 products

Jumper Cords

Ready to connect with a terminal at one or both ends

2 products

Measuring and Inspecting

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

23 products

Test Lead Wire

Add your own clips, tips, and adapters to link electrical testers to the units you're checking

2 products

Patch Cords

Make point-to-point connections between electrical testing equipment and your devices

7 products