Contact Switches | McMaster-Carr

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1,803 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

Snap-Acting Switches

Snap-Acting Switches

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

Push-Button Switches

Push-Button Switches

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

Push-Button Actuators

Push-Button Actuators

Pair with a contact block to create a custom push-button switch

Key Actuators

Pair with a contact block to create a custom key switch

Lever Actuators

Lever Actuators

Pair with a contact block to create a custom lever switch

Magnetic Switches

Magnetic Switches

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

Safety Switches

Safety Switches

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

Switch Mats

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

Enclosure Door Switches

Enclosure Door Switches

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

Lever Switches

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

Touch-Pad Switches

Touch-Pad Switches

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

Ribbon Switches

Ribbon Switches

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

Proximity Sensors

Proximity Sensors

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

Rocker Switches

Rocker Switches

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

Pendant Switches

Pendant Switches

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

Enabling Switches

Enabling Switches

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

Toggle Switches

Toggle Switches

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

Doorbell Switches

Doorbell Switches

Activate doorbells or buzzers with the push of a button

Key Switches

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

Cylinder Position Sensors

Cylinder Position Sensors

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

Rotary Switches

Rotary Switches

Control multiple devices with a single switch

Foot Switches

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

Emergency Stop Switches

Emergency Stop Switches

Cut power to equipment during emergencies

Pull Switches

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

Finger-Touch Switches

Finger-Touch Switches

Lightly touch with your finger to turn circuits on and off

Joystick Switches

Joystick Switches

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

Air-Actuated Switches

Air-Actuated Switches

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

Fingerprint Scanners

Fingerprint Scanners

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

Fabricating and Machining

Abrasive Blaster Safety Switches

Abrasive Blaster Safety Switches

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

Building and Machinery Hardware

T-Slotted Framing Switches

T-Slotted Framing Switches

Attach to your rail to actuate components or cut power

Cam Locks

Unlock with a key, magnetic fob, screwdriver, or number combination

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)