Wiring Harnesses | McMaster-Carr

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1" Circular Connector

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High-Pressure Washdown

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8,446 Products

Most Likely Products

Wire Sleeving

Bundle wiring and protect from abrasion and heat

878 products

Power Cords

Connect equipment and devices to a power source

263 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

80 products

All Results

Electrical Power, Networking, and Controlling

Wire Sleeving

Bundle wiring and protect from abrasion and heat

878 products

Conduit and Fittings

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

1,358 products

Cable and Hose Carriers

Route, protect, and guide moving cable

369 products

Wire Duct

Guide and organize wiring inside electrical boxes and machines

71 products

Heat-Shrink Tubing Splitters

Insulate and seal where wire splits off from cable; also known as breakout boots

23 products

Raceway

Route and guard wiring along surfaces in your facility

157 products

Cable Support Grips

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

75 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

812 products

Heat-Shrink Tubing Seal Wrap

Wrap around wire like tape to create a moisture resistant seal before adding heat-shrink tubing

5 products

Cable Trays

Organize and route bundles of cable while keeping them accessible anywhere along the run

79 products

Conduit Bumpers

Shield sections of flexible conduit from impact to prevent wear

5 products

Cold-Shrink Tubing End Caps

Seal crimped electrical connections without heat or tools to protect against moisture

4 products

Wire Sleeving Installation Tools

Insert wire and hose into corrugated, spiral wrap, or wraparound sleeving

7 products

Electrical Tape

Insulate wire and cable splices, wrap wire harnesses, and repair cable jacketing

96 products

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

22 products

Cold-Shrink Tubing

Conforms to wire and cable without heat, creating a permanent, watertight seal

17 products

Weatherheads

Bring power into buildings and protect the entry point from rain and snow

10 products

Conduit Support Clips

Mount flexible plastic conduit to walls and machines

8 products

Cable Tray Connectors

Join trays that run in a straight line or need to change direction

9 products

Cable Tray Hanging Clips

Snap in place to suspend trays and detach quickly for loading cable

3 products

Cable Tray Drop Outs

A rounded surface supports cable as it exits the tray to protect it from sharp edges

10 products

Raceway Caps

Close off the end of a run to keep out dust and debris

18 products

Raceway Connectors

Join raceway components or secure the ends of runs to walls and enclosures

23 products

Raceway Tees

Join or split runs of raceway

18 products

Cable Tray Mounting Brackets

Secure trays to walls and ceilings

33 products

Cable Tray Hanging Clamps

Suspend trays from the ceiling or the run above

1 product

Cable Tray Hanging Bars

Rest trays on strut channel that is suspended from the ceiling or the run above

4 products

Raceway Elbows

Change the direction of a run by adding 90° and 45° turns

43 products

Raceway Mounting Brackets

Attach raceway along walls and ceilings

10 products

Raceway Outlet Boxes

House switches and receptacles along runs of raceway

12 products

Raceway Wire Retention Clips

Bundle and secure wiring inside raceway

5 products

Raceway Outlet Box Covers

Enclose wiring for raceway outlets and switches or block off unused components

5 products

Cable Ramps

Protect cable and cords in areas with pedestrian and equipment traffic

72 products

Raceway Reducers

Connect two different sizes of raceway

5 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

80 products

Strain-Relief Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Power Connectors

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

75 products

Metric Circular Connectors

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

292 products

Amphenol Connectors

Attach wires to a circuit board

19 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

140 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

Han Connectors

Plugs and sockets to make Han connections

4 products

Micro 360 Connectors

Plugs and sockets to make control and data connections in tight spaces

12 products

Latching Connector Housings

Everything you need to build a plug housing and a socket housing

2 products

Mini Receptacles

Install in walls and panels and pair with plugs to send power and signal

55 products

Power Cords

Connect equipment and devices to a power source

263 products

Metric Circular Cords

Send power and signal to equipment with metric connections

474 products

Mini Cords

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

207 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

59 products

Ethernet Cords

Send data between computers, printers, servers, and switches

308 products

Extension Cords

Extend the reach of power from an outlet

387 products

HDMI Cords

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

21 products

Video Adapter Cords

Send video between devices with different connections

8 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

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

4 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

70 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

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

254 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

Conductive Tape

Shield cables and electronic components from electromagnetic interference (EMI)

59 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Battery Cords

Connect batteries to each other

31 products

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

6 products

Material Handling

Cable Ties

Bundle and secure cable, wire, and hose; also known as zip ties

705 products

Fastening and Joining

Masking Tape

Temporarily join or protect surfaces

112 products

Mounting Tape

Mount everything from signs and panels to carpet and padding

27 products

Welding Cable Covers

Protect the cables on your MIG or TIG guns from weld spatter

6 products

Fluid Handling

Thermocouple Insulating Sleeves

Protect thermocouple wire in extreme-temperature applications, such as die casting and heat treating

13 products

Fabricating and Machining

Wire Duct Cutters

Trim plastic slotted wire duct to fit inside enclosures and control panels

1 product

Containers, Storage, and Furniture

Strap Handles

Wrap around bundles and hard-to-grip objects for a more convenient carry

3 products

Lighting

Fiber-Optic Flashlight Cable

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

1 product

Heating, Ventilation, and Air Conditioning

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

8 products

Building and Machinery Hardware

Strut Channel Conduit Connection Plates

Convert strut channel into a raceway for electrical wiring

4 products

Communication

Tag Ties

Wrap through tag holes to connect to items such as lanyards and key rings

2 products