Power Supply Wire | McMaster-Carr

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4,141 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

303 products

Power Cable

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

309 products

Building Wire

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

42 products

Vehicle Wire

Make connections in low-voltage vehicle wiring systems

112 products

Battery Wire

Transmit power from batteries in vehicles, generators, and appliances

27 products

Vehicle Cable

Make multiple connections in low-voltage vehicle wiring systems

12 products

Security Cable

Connect low-current security and intercom systems

53 products

Control Cable

Send signals to control machinery and automated systems

130 products

Building Cable

With designations such as NM and UF, building cable brings power to wall outlets and outlet boxes

31 products

Power Cords

Connect equipment and devices to a power source

258 products

Irrigation Cable

Supply low-voltage power in sprinkler systems

8 products

VFD Motor Cable

Connect variable-frequency drive motors to equipment

13 products

Thermostat Cable

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

12 products

Servo Cable

Connect servocontrollers and servomotors in automated equipment and on assembly lines

6 products

Pendant Cable

Supply power from an overhead source

8 products

Extension Cords

Extend the reach of power from an outlet

380 products

Metric Circular Cords

Send power and signal to equipment with metric connections

474 products

Outdoor Lighting Cable

Power low-voltage lighting equipment, such as landscape lighting

3 products

Fire Alarm Cable

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

8 products

Ribbon Cable

Ultra flexible to connect components inside electronics

6 products

Submersible Pump Cable

Supply power to submersible pumps in water or oil wells

2 products

Extension Cord Reels

Keep extension cords easy to access without creating a tripping hazard

91 products

USB Cords

Transfer data between computers, printers, and mobile devices

236 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

60 products

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

221 products

Breakaway Cords

Disconnect if pulled to prevent stress on cord

6 products

Thunderbolt Cords

Transmit data and video at high speeds between PCs, mobile devices, and displays

2 products

Ethernet Cords

Send data between computers, printers, servers, and switches

12 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

378 products

Molex Plug and Socket Sets

Come with wire leads installed for quick additions to existing Molex systems

73 products

Amphenol Connectors

Attach wires to a circuit board

32 products

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

271 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

57 products

AMP Plug and Socket Sets

Come with wire leads installed for quick additions to existing AMP systems

34 products

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

3 products

Mini Adapters

Create a branch off a main cord or connect multiple devices with mini connections to a single port

8 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

115 products

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

3 products

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

8 products

Battery Cords

Connect batteries to each other

31 products

Jumper Cords

Ready to connect with a terminal at one or both ends

17 products

Voltage Adapters

Change AC voltage to DC voltage to power a device

284 products

Ethernet Switches

Expand your data network by connecting computers, printers, and servers

20 products