Contact Switches | McMaster-Carr

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DFARS Specialty Metals

Exempt

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1,385 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

Snap-Acting Switches

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

206 products

Push-Button Switches

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

272 products

Magnetic Switches

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

120 products

Safety Switches

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

59 products

Switch Mats

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

35 products

Enclosure Door Switches

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

2 products

Lever Switches

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

34 products

Foot Switches

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

63 products

Pendant Switches

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

81 products

Ribbon Switches

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

12 products

Toggle Switches

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

43 products

Sensor Switches

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

13 products

Rocker Switches

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

13 products

Key Switches

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

12 products

Touch-Pad Switches

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

2 products

Doorbell Switches

Activate doorbells or buzzers with the push of a button

22 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

8 products

Enabling Switches

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

10 products

Emergency Stop Switches

Cut power to equipment during emergencies

4 products

Pull Switches

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

2 products

Finger-Touch Switches

Lightly touch with your finger to turn circuits on and off

22 products

Joystick Switches

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

6 products

Air-Actuated Switches

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

3 products

Fingerprint Scanners

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

2 products

Measuring and Inspecting

Rotary Switches

Control multiple devices with a single switch

4 products

Building and Machinery Hardware

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

18 products