Photoelectric Switches | McMaster-Carr

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1/2" Circular Connector

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559 Products

Electrical

Sensor Switches

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

255 products

Photoelectric Switch Reflectors

Pair with sensor switches to reflect light back at them

38 products

Switch Safety Barriers

Safely send power to switches and sensors in volatile areas such as refineries and power plants

2 products

Sensor Switch Transmitters

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

8 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

44 products

Relays

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

4 products

Lighting

Light Switch Sensors

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

75 products

Light Switch Sensor Guards

Protect light switch sensors from damage and vandalism

5 products

Light Switch Sensor Controllers

Turn lights on and off or dim them in unison from a secure Bluetooth network

9 products

Measuring and Inspecting

Signal Output Testers

Check if the signal output of a DC switch is NPN or PNP to know how to wire components

1 product

Building and Machinery Hardware

Brackets

Connect surfaces in an assembly

63 products