Position Switches | McMaster-Carr

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Dual Switch Roller Lever

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High-Pressure Washdown

High-Temperature Washdown

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1/2" Circular Connector

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Illuminated

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DFARS Specialty Metals

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C-UL Recognized Component

California Fire Marshal Approved

Energy Star Certified

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Actuator Color

4,749 Products

Electrical Power, Networking, and Controlling

Limit Switches

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

153 products

Lever Switches

Grip and twist the lever to turn circuits on and off, preventing accidental actuation

155 products

Snap-Acting Switches

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

209 products

Magnetic Switches

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

120 products

Proximity Sensors

Detect the presence or position of objects from a short sensing distance

428 products

Rotary Switches

Control multiple devices with a single switch

13 products

Toggle Switches

Flip the toggle from one position to the other, turning circuits on and off

127 products

Switch Contact Blocks

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

40 products

Key Switches

Turn a key to actuate circuits, preventing accidental start and limiting access

77 products

Slide Switches

Like a flashlight, the switch slides from one side to the other to turn circuits on and off

1 product

Tilt Switches

Trip circuits when tilted; use as position indicators, pump level controls, and limit switches

8 products

Push-Button Switches

Our most common switch type actuates circuits with the push of a button

457 products

Speed-Monitoring Switches

Avoid downtime and machinery damage by detecting slowdowns in drive trains and conveyors

3 products

Foot Switches

Step on the pedal to actuate circuits while keeping your hands free for other tasks

94 products

Emergency Stop Switches

Cut power to equipment during emergencies

190 products

Finger-Touch Switches

Lightly touch with your finger to turn circuits on and off

36 products

DIP Switches

Slide actuators to open or close each circuit to configure instructions for electronic devices

7 products

Pull-Chain Switches

Pull a chain to send a signal, such as for turning on and off lights and fans

1 product

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

44 products

Bumper Switches

Signal when overhead doors close or items reach the end of conveyors

31 products

Safety Switches

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

59 products

Switch Mounts

Mount switches to panel cutouts, tank walls, or conveyors

5 products

Touch-Pad Switches

Lay flat or mount on a wall to alert you when doors open or objects are removed

4 products

Ribbon Switches

Place across driveways or walkways to actuate when foot and vehicle traffic pass over

15 products

Switch Mats

Step on a mat to actuate circuits, often to control doors, lights, and alarms

45 products

Enabling Switches

Equipment only runs while you press the switch; also known as deadman switches

18 products

Rocker Switches

Press the wide, flat surface to easily turn circuits on and off

121 products

Pendant Switches

Control machinery, such as cranes, hoists, and trolleys, from a safe distance

93 products

Pull Switches

Tug on a cable or rope to turn on and off circuits, often for production lines along conveyors

4 products

Doorbell Switches

Activate doorbells or buzzers with the push of a button

22 products

Joystick Switches

Move the joystick to steer and position cranes, robot arms, and other machinery

15 products

Battery Switches

Turn the knob to alternate between two batteries without interrupting power

1 product

Air-Actuated Switches

Press with your hand or foot to turn circuits on and off with air pressure

13 products

Fingerprint Scanners

Use fingerprints to confirm the identity of personnel before granting access to areas or equipment

3 products

Enclosure Door Switches

Control fans, lights, and other devices inside your enclosure when you open and close the door

2 products

Photoelectric Sensors

Detect objects from longer distances than proximity and ultrasonic sensors

263 products

Cylinder Position Sensors

Monitor your air cylinder rod's position and turn the cylinder on and off

8 products

Ultrasonic Sensors

Measure the distance to objects and the level of liquids and materials

21 products

IO-Link Programmers

Configure your IO-Link devices without a PC, outlet, or separate software

1 product

Relays

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

414 products

Interface Relays

Isolate input and output circuits to protect PLCs and other controllers

79 products

Lighting Relays

Control lighting circuits and switch lighting systems on or off

13 products

Vehicle Relays

Switch high-current loads on vehicles, such as starters, headlights, and fuel pumps

47 products

Latching Relays

Lock into position so they don't require constant voltage to stay switched

29 products

Monitoring Relays

Trip circuits or sound an alarm when voltage, current, or other limits are exceeded

31 products

Infrequent-Cycle Relays

Use with equipment that cycles on and off, such as HVAC systems

147 products

Air-Actuated Relays

Convert an air signal on a pneumatic control system to an electric one

1 product

Safety Relays

Monitor circuits and force machines to a safe stop if the relay detects a fault

64 products

Alternating Relays

Automatically split run time between two devices so one isn't always running

2 products

Proportional-Control Relays

Gradually adjust output instead of turning on or off

12 products

Fluid Handling

Level Sensor Switches

Activate equipment by detecting the liquid level in a tank

29 products

Directional Control Valves

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

485 products

Float Switches

Start process equipment such as pumps and motors when the liquid in your tank reaches the float

130 products

Paddle Level Switches

Actuate when the paddle stops rotating to indicate the level of dry material

6 products

Building and Machinery Hardware

T-Slotted Framing Switches

Attach to your rail to actuate components or cut power

10 products

Lighting

Light Switches

Manually turn lights on and off

65 products

Light Switch/Receptacles

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

3 products

Fabricating and Machining

Abrasive Blaster Safety Switches

Shut off abrasive blasters if the operator loses control; also known as deadman switches

11 products

Power Transmission

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

27 products

Facility and Grounds Maintenance

Mirrors

View your reflection or deflect beams from safety barrier switches for a perimeter around machinery

10 products

Heating, Ventilation, and Air Conditioning

Thermostats

Connect to heaters, fans, and air conditioners to control the temperature

72 products

Communication

Audible Alarms

Everything from bells and whistles to horns and sirens

169 products

Indicator Lights

Call attention to hazards and changes in status with flashing, strobe, and other lights

1 product