Electrical Wire | McMaster-Carr

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6,347 Products

Electrical

Lead Wire

Make connections for low-power and control applications in appliances, panels, and other equipment

320 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

Control Cable

Send signals to control machinery and automated systems

586 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

Welding Cable

Resist abrasion while carrying current for welding

28 products

Building Cable

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

36 products

Vehicle Cable

Make multiple connections in low-voltage vehicle wiring systems

12 products

Power Cords

Connect equipment and devices to a power source

275 products

Magnet Wire

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

26 products

Security Cable

Connect low-current security and intercom systems

53 products

Variable-Frequency Drive Motor Cable

Connect variable-frequency drive motors to equipment

13 products

Irrigation Cable

Supply low-voltage power in sprinkler systems

8 products

Pendant Cable Hardware Kits

Hang equipment from drop-down cable

1 product

RTD Wire

Connect RTD sensors to measurement and control devices

6 products

Thermostat Cable

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

12 products

Coaxial Cable

Transmit audio, data, and video signals

8 products

Extension Cords

Extend the reach of power from an outlet

371 products

Thermocouple Wire

Connect thermocouples to switches, controllers, recorders, and thermometers

64 products

Servo Cable

Connect servocontrollers and servomotors in automated equipment and on assembly lines

8 products

Pendant Cable

Supply power from an overhead source

7 products

Fieldbus Cable

Connect devices in Fieldbus communication networks

1 product

Outdoor Lighting Cable

Power low-voltage lighting equipment, such as landscape lighting

3 products

Development Board Cords

Connect your development board to components such as sensors and actuators

7 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

4 products

Submersible Pump Cable

Supply power to submersible pumps in water or oil wells

2 products

DeviceNet Cable

Connect devices in DeviceNet communication networks

4 products

Jumper Cables

Jump-start a dead battery

12 products

Circuit Board Cords

Short lengths of terminated wire make temporary connections on circuit boards

24 products

Power Cord Reels

Neatly store power cords for easy access

91 products

Metric Circular Cords

Send power and signal to equipment with metric connections

543 products

Ethernet Cable

Send data between computers, printers, servers, and switches

20 products

Jumper Cable Clamps

Replace clamps on jumper cables

2 products

Ribbon Cable

Ultra flexible to connect components inside electronics

6 products

Profinet Cable

Connect devices in Profinet communication networks

2 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Ethernet Cords

Send data between computers, printers, servers, and switches

308 products

Profibus Cable

Connect devices in Profibus communication networks

3 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

59 products

Battery Cords

Connect batteries to each other

31 products

Fiber-Optic Cable

Transmit signals between data centers and workstations in fiber-optic networks

12 products

CAN-Bus Cable

Connect devices in CAN-Bus communication networks

6 products

Modbus Cable

Connect devices in Modbus communication networks

2 products

Circuit Board Cable

Flat and flexible, connect circuit boards inside electronic devices

20 products

Telephone Cable

Connect telephones and telephone blocks to a wall jack

6 products

Breakaway Cords

Disconnect if pulled to prevent stress on cord

6 products

Mitutoyo Cords

Connect your measuring tool to miniprocessors, multiplexers, or PCs

22 products

Fiber-Optic Cords

Connect computers, servers, and switches in a fiber-optic network

34 products

Video Adapter Cords

Send video between devices with different connections

8 products

Audio Cords

Hook up speakers to an audio signal

13 products

Thunderbolt Cords

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

2 products

DMX Cords

Connect to lighting equipment with five-pin XLR connections

3 products

Profibus Cords

Transmit data in automation systems and other networks

2 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

72 products

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

2 products

DisplayPort Cords

Send video from computers to monitors and other displays

26 products

Mini Cords

Often used to send power and signal to automated systems, motors, and pumps

207 products

Robot Controller Cords

Extend the distance between a robot arm and a controller

3 products

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

199 products

USB Cords

Transfer data between computers, printers, and mobile devices

255 products

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

22 products

ix Industrial Cords

Send data or signals between equipment, such as a servomotor and encoder

6 products

Robot Teach Pendant Cords

Connect robot controllers and teach pendants

25 products

Robot Teach Pendant Cord Reels

Keep the cords connecting your robot controller and teach pendant organized and out of the way

12 products

Ethernet Cord Reels

Keep an ethernet cord on hand but out of the way

1 product

Wrap Wire

Wrap around a circuit board post terminal without the need for soldering

8 products

Amphenol Connectors

Attach wires to a circuit board

31 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

Metric Circular Connectors

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

224 products

Power Receptacles

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

2 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

119 products

Distribution Blocks

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

47 products

Grounding Wire

Ground current in electrical systems

38 products

Grounding Straps

Flat shape creates more surface area contact than grounding wire

22 products

Bonding and Grounding Clamps

Add cable or use included cable to create a grounding path, which prevents static charge buildup

50 products

Bonding and Grounding Reels

Neatly store included grounding clamp and cable, which prevent static buildup; tug to retract cable

12 products

Lightning Rods

Attract lightning strikes to safely redirect them from the tops of buildings to the ground

17 products

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

517 products

Cable Support Grips

Reduce tension and vibration that damage hanging cable; also known as bus drop grips

75 products

Voltage Adapters

Change AC voltage to DC voltage to power a device

284 products

Inverters

Transform DC voltage to power devices that run on AC voltage; prevent overload damage

12 products

Measuring and Inspecting

BNC Test Cords

Connect oscilloscopes and other testers to your equipment

4 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Wire

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

4 products

Patch Cords

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

12 products

Raw Materials

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

86 products

Lighting

Fiber-Optic Flashlight Cable

Shine light into hard-to-reach spaces by attaching to your flashlight

1 product

Fastening and Joining

MIG Welding Wire

Use with MIG welders to fuse metals together

182 products

Welding Cords

Quickly connect your welder to an electrode or other component, or ground your setup

10 products

Fluid Handling

Thermocouple Cords

Extend the reach of thermocouple probes

46 products