Safety Switches | McMaster-Carr

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System of Measurement

Switching Voltage

120V AC to 277V AC

Switching Current

Environment

Food and Beverage

High-Pressure Washdown

High-Temperature Washdown

Electrical Phase

Enclosure Rating

Number of Circuits Controlled

Switch Starting Position

Housing Material

Stainless Steel

Voltage

Wire Connection

Switch Action

Number of Terminals

Number of Wires

Electrical Connection

1/2" Circular Connector

Flat-Pin Mini Thermocouple Connector

Metric Circular

Input Voltage

12V AC to 240V AC

20V AC to 30V AC

20V AC to 132V AC

20V AC to 140V AC

20V AC to 250V AC

20V AC to 265V AC

24V AC to 240V AC

24V AC to 250V AC

30V AC to 250V AC

90V AC to 250V AC

90V AC to 264V AC

5V DC to 24V DC

Horsepower @ Switching Voltage

1/4 hp @ 120V AC

1/3 hp @ 120V AC

1/2 hp @ 120V AC

3/4 hp @ 120V AC

1 1/2 hp @ 120V AC

7 1/2 hp @ 120V AC

10 hp @ 120V AC

1/4 hp @ 125V AC

1/2 hp @ 230V AC

3/4 hp @ 240V AC

1 1/2 hp @ 240V AC

Color

For Number of Fuses

RoHS

Compliant with Exemptions

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

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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3,017 Products

Electrical Power, Networking, and Controlling

Disconnect Switches

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

Safety Switches

Safety Switches

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

Magnetic Switches

Magnetic Switches

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

Limit Switches

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

Emergency Stop Switches

Emergency Stop Switches

Cut power to equipment during emergencies

Push-Button Switches

Push-Button Switches

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

Snap-Acting Switches

Snap-Acting Switches

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

Pendant Switches

Pendant Switches

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

Proximity Sensors

Proximity Sensors

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

Bumper Switches

Bumper Switches

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

Switch Guards

Prevent people from activating switches accidentally

Pull Switches

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

Key Switches

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

Lever Switches

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

Toggle Switches

Toggle Switches

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

Finger-Touch Switches

Finger-Touch Switches

Lightly touch with your finger to turn circuits on and off

Enclosure Door Switches

Enclosure Door Switches

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

Motor Switches

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

Safety Light Curtains

Safety Light Curtains

Immediately cut power to machinery when anything blocks the light beam

Air-Actuated Switches

Air-Actuated Switches

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

Photoelectric Sensors

Photoelectric Sensors

Detect objects from longer distances than proximity and ultrasonic sensors

Enabling Switches

Enabling Switches

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

Foot Switches

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

Battery Switches

Battery Switches

Turn the knob to alternate between two batteries without interrupting power

Switch Padding

Trigger an emergency stop when robot arms contact a worker or object

Transfer Switches

Transfer Switches

Switch to backup power during an outage

Joystick Switches

Joystick Switches

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

Ribbon Switches

Ribbon Switches

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

Fingerprint Scanners

Fingerprint Scanners

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

Rotary Switches

Rotary Switches

Control multiple devices with a single switch

Doorbell Switches

Doorbell Switches

Activate doorbells or buzzers with the push of a button

Automatic Door Switches

Automatic Door Switches

Doors open when you touch a button or the switches detect motion

Ultrasonic Sensors

Ultrasonic Sensors

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

Safety Light Curtain Mirrors

Safety Light Curtain Mirrors

Deflect beams from a set of safety barrier switches to form a perimeter around machinery

Safety Relays

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

Fusible Link Switches

Fusible Link Switches

Use as a safety switch to shut off hydraulic equipment and other machinery when the link melts

Building and Machinery Hardware

Push-to-Close Latches

Push-to-Close Latches

Automatically hold doors shut when you push them closed

Cam Locks

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

T-Slotted Framing Switches

T-Slotted Framing Switches

Attach to your rail to actuate components or cut power

Communication

Labels

Stick onto items to identify or convey information about them

Legend Plates

Mark switches and lights on control panels for easy identification

Lighting

Light Switch/Receptacles

Light Switch/Receptacles

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

Heating, Ventilation, and Air Conditioning

Thermostats

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

Fluid Handling

Temperature Controllers

Temperature Controllers

Precisely regulate process temperatures; more accurate than temperature switches

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

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