Power Connectors | McMaster-Carr

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10,576 Products

Electrical Power, Networking, and Controlling

Power Connectors

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

1,667 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

206 products

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

167 products

Metric Circular Connectors

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

272 products

Mini Connectors

Plugs, sockets, and receptacles send power and control signals to equipment and automated systems

78 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

180 products

AMP Connectors

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

80 products

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

14 products

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

17 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

Power Connector Caps

Cover pin-and-sleeve power connectors when they're not in use

38 products

USB Connectors

Plugs, sockets, receptacles, and adapters to make USB connections

76 products

Breakaway Connectors

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

3 products

Han Connectors

Plugs and sockets to make Han connections

8 products

Mil. Spec. Connector Caps

Protect Mil. Spec. connectors when they're not in use

12 products

Amphenol Connectors

Attach wires to a circuit board

32 products

Ballast Connectors

Avoid exposure to live wires when replacing fluorescent ballasts

2 products

Metric Circular Connector Caps

Keep metric circular connectors safe when they're not in use

11 products

Mini Connector Caps

Shield mini connectors when they're not in use

13 products

Micro 360 Connectors

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

24 products

Strain-Relief Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Mini Connector Thread Adapters

Join two connectors that both have internal threads

6 products

USB Connector Caps

Shield unused USB connectors from damage, contaminants, and moisture

3 products

RJ45 Connector Caps

Protect sockets and maintain the IP67 rating when not in use

1 product

Coaxial Connector Caps

Terminate the end of an unused coaxial cable

2 products

Power Cords

Connect equipment and devices to a power source

265 products

Metric Circular Cords

Send power and control signals to equipment with metric connections

500 products

Extension Cords

Extend the reach of power from an outlet

374 products

Mini Cords

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

221 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

60 products

Thunderbolt Cords

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

2 products

Breakaway Cords

Disconnect if pulled to prevent stress on cord

6 products

Ethernet Cords

Send data between computers, printers, servers, and switches

12 products

USB Cords

Transfer data between computers, printers, and mobile devices

236 products

Extension Cord Reels

Keep extension cords easy to access without creating a tripping hazard

94 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

696 products

Terminals, Ferrules, and Lugs

Attach to the end of wire to connect circuits in control panels, motors, and machinery

1,273 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

378 products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

115 products

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

13 products

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

31 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

USB Chargers

Power up mobile devices and other electronics

27 products

Distribution Blocks

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

47 products

Slip Rings

Maintain an electrical link between a moving part and a stationary part

4 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

4 products

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Outlet Strip Mounts

Snap in outlet strips for quick mounting on flat surfaces

4 products

Battery Connectors

Quickly make and break connections between a battery and a charger or equipment

43 products

Battery Cords

Connect batteries to each other

31 products

Battery Terminal Adapters

Convert one battery terminal style to another

6 products

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

52 products

Jumper Cables

Jump-start a dead battery

12 products

Backup Power Supplies

Transfer power to a built-in battery during partial and complete outages

19 products

Battery Terminal Fasteners

Replace bolts in battery terminals

3 products

Temporary Power Distribution Boxes

Send power to equipment from generators or other sources when electricity is not available

4 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 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

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

259 products

Logic Level Converters

Translate signals between development boards, sensors, and other components with different voltages

1 product

Power Converters

Connect power supplies to equipment that requires a different input voltage

50 products

Rectifiers

Convert AC voltage to a constant DC voltage on a circuit board

30 products

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

39 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,190 products

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

125 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products

Stepper Motor Drives

Control the speed and position of stepper motors

6 products

Circuit Board Voltage Regulators

Power circuits from a high-voltage source without frying your system

15 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

Diodes

Route current in one direction and block it in the other to protect sensitive electronics

93 products

Ribbon Switch Termination Kits

Pair with your cut-to-length ribbon switch for a complete system

3 products

Transfer Switches

Switch to backup power during an outage

7 products

Ethernet Switches

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

5 products

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

1 product

EMI/RFI Suppressing Clips

Shield cable from EMI and RFI that can distort signals; also known as ferrite beads

64 products

Measuring and Inspecting

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

1 product

Fastening and Joining

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

1 product

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

13 products

Heating, Ventilation, and Air Conditioning

Temperature-Controlled Outlet Adapters

Automatically turn heating and cooling devices on and off as temperatures rise and fall

3 products

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

838 products

Lighting

Light Sockets

Install or replace sockets in fixtures for standard household, tubular, compact, or miniature bulbs

1 product

Light Switch/Receptacles

Combine a switch and receptacle into a single outlet box for a small footprint

3 products

Material Handling

Vacuum Lifters

Grip and move objects with air- or electric-powered suction

5 products