Screw Terminal Switches | McMaster-Carr

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Rocker Switch with Mini Slide Dimmer

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Export Control Classification Number (ECCN)

5A991

EAR99

DFARS Specialty Metals

Exempt

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Compliant

Compliant with Exemptions

REACH

2,376 Products

Electrical Power, Networking, and Controlling

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

672 products

Manual Switch Contact Blocks

Mount to switches to control electrical circuits as you move the switch

37 products

Motor Switches

Turn motors, lighting, and electric heat circuits on and off

46 products

Limit Switches

Turn equipment on or off when objects touch the actuator; often used for conveyors and bin filling

68 products

Snap-Acting Switches

Open and close circuits quickly to minimize arcing and sticking; often used as door-open indicators

50 products

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

87 products

Timer Switches

Automatically turn electrical equipment on or off after a set interval

78 products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

45 products

Ethernet Switches

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

35 products

Magnetic Switches

Actuate when a magnet comes within sensing distance; often used to detect when doors or windows open

8 products

Switch Safety Barriers

Safely send power to switches and sensors in volatile areas such as refineries and power plants

2 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

7 products

Transfer Switches

Switch to backup power during an outage

2 products

PLCs

Program complex automation jobs by combining the functionality of a relay, timer relay, and switch

9 products

PLC Expansion Modules

Connect switches, transmitters, and actuators to your PLC for complex automation jobs

10 products

Potentiometers

Control speed, volume, and light intensity by varying electrical flow; also known as rheostats

4 products

Motor Voltage Monitors

Protect electric motors by cutting power when faults occur

3 products

Motor Speed Controls

Manage the speed of AC and DC motors

9 products

Motor Starter Switches

Combine with a thermal overload element to build a starter that can handle high-current-rated motors

13 products

Motor Starter Overload Protectors

Upgrade your motor starter protector to use less energy and emit less heat

8 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

421 products

Timer Relays

Turn machinery on or off after receiving an electrical signal that starts the timer

16 products

Circuit Breakers

Reusable way to interrupt circuits when they overload or short

35 products

Lighting

Light Switches

Manually turn lights on and off

32 products

Light Switch/Receptacles

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

2 products

Light Dimmers

Adjust the brightness of lights, even in large workspaces

4 products

Light Switch Sensors

Automatically turn lights on and off when you enter and exit rooms

11 products

Light Switch Sensor Controllers

Turn lights on and off or dim them in unison from a secure Bluetooth network

2 products

Light Sockets

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

6 products

Fluid Handling

Humidity Controllers

Monitor humidity and control it by automatically turning equipment on and off

1 product

Temperature Controllers

Precisely regulate process temperatures; more accurate than temperature switches

82 products

Temperature Switches

Turn heating equipment on or off at a specified temperature

89 products

Water Heater Thermostats

Replace the thermostat on your water heater

3 products

Pressure Switches

Activate controls, set off alarms, and power equipment when a set pressure is reached

157 products

Differential Pressure Switches

Activate controls and alarms when the pressure difference between process lines exceeds a setpoint

47 products

Pressure and Vacuum Switches

Activate controls, set off alarms, and power equipment when a set pressure or vacuum is reached

3 products

Vacuum Switches

Activate controls, set off alarms, and power equipment when a set vacuum is reached

4 products

Directional Control Valves

Manage the flow of fluids to move equipment in air- and hydraulic-powered systems

16 products

Safety Equipment

Smoke Detector Test Stations

Test hard-to-reach HVAC smoke detectors from a convenient location

1 product

Smoke Detectors

Warn people when there's smoke in your facility

3 products