Harsh Environment Switches | McMaster-Carr

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System of Measurement

Actuator Style

Cross Roller Plunger

Dual Switch Roller Lever

Environment

Food and Beverage

High-Pressure Washdown

High-Temperature Washdown

Switch Action

Diameter

Enclosure Rating

Switch Starting Position

Switching Current

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

Panel Cutout Diameter

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Number of Terminals

Actuator Color

Push-Button Style

Number of Circuits Controlled

Electrical Connection

1/2" Circular Connector

Circular Metric

Illumination

Not Illuminated

Signal Output

Mounting Location

Electrical Receptacle

Light Bulb Socket

Printed Circuit Board

Switch Type

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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2,713 Products

Electrical

Manual Switches

Manual Switches

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

Manual Switch Contact Blocks

Manual Switch Contact Blocks

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

Snap-Acting Switches

Snap-Acting Switches

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

Limit Switches

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

Sensor Switches

Sensor Switches

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

Photoelectric Switch Reflectors

Photoelectric Switch Reflectors

Pair with sensor switches to reflect light back at them

Disconnect Switches

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

Magnetic Switches

Magnetic Switches

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

Potentiometers

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

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

Bumper Switches

Bumper Switches

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

Vibration Switches

Vibration Switches

Monitor vibration in machinery and shut it down or sound an alarm if levels rise

Fusible Link Switches

Fusible Link Switches

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

Ethernet Switches

Ethernet Switches

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

Relays

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

Motor Starters

Turn motors on and off and protect them from current overloads

Safety Switches

Safety Switches

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

Speed-Monitoring Switches

Speed-Monitoring Switches

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

Motor Switches

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

Switch Mounts

Mount sensor switches to panel cutouts, tank walls, or conveyors

Sensor Switch Transmitters

Sensor Switch Transmitters

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

Power Receptacles

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

Lighting

Light Switch Sensors

Light Switch Sensors

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

Light Switches

Manually turn lights on and off

Communication

Legend Plates

Mark switches and lights on control panels for easy identification

RFID Readers

Read RFID cards when prototyping systems or scan RFID tags to control circuits

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