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Choosing an Electrical Switch
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Wireless Emergency Stop Push-Button Switches
Instantly cut power when obstacles or distance make it hard to reach your machine in time. Whether it’s a jammed conveyor or a remotely operated forklift, these switches let you shut down with a single push—no need to navigate around a crowded shop floor. Install surface-mount switches to workstations and other easy-to-access spots or carry portable switches around with you so you can stop a machine no matter where you are. They communicate wirelessly with a receiver (sold separately) that’s hardwired to your machine. Stop multiple machines with one switch, set multiple switches to stop one machine, or anything in between.
900 MHz switches are compatible with frequencies found in U.S. systems. These switches can be used in combinations of six. For example, you could set one switch to control five machines.
2.4 GHz switches are compatible with frequencies found in European systems. These switches can be used in combinations of 10. For example, you could pair four switches with six receivers or eight switches with two receivers.
Switches that meet IEC 61508 SIL2 and ISO 13849-1 PLd comply with safety requirements for emergency stop applications.
Antenna extension cords (sold separately) connect a receiver to an antenna, so you can keep the receiver safe inside an enclosure.

Wire Leads | Mounting | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Switch Action | Actuator Color | Dia. | Wire Connection Type | No. of | Lg. | Housing Material | Fasteners Included | No. of Holes | Hole Dia. | Specifications Met | Environmental Rating | Each | |
900 MHz Transmission Frequency | ||||||||||||||
A | Stays Switched (Maintained) | Red | 1 5/16" | Wire Leads | 2 | 3" | Black Plastic | No | 2 | 3/16" | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 0000000 |
2.4 GHz Transmission Frequency | ||||||||||||||
A | Stays Switched (Maintained) | Red | 1 5/16" | Wire Leads | 2 | 3" | Black Plastic | No | 2 | 3/16" | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |



Battery | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Style | Switch Action | Actuator Color | Dia. | Connection Type | Included | Life, hrs. | Housing Material | Specifications Met | Environmental Rating | Each | |
900 MHz Transmission Frequency | |||||||||||
B | Stays Switched (Maintained) | Red | 1 5/16" | Magnetic Charger | Yes | 16 | Red Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 0000000 |
C | Stays Switched (Maintained) | Red | 1 3/16" | USB Micro B | Yes | 16 | Orange Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |
D | Stays Switched (Maintained) | Red | 1 5/16" | Magnetic Charger | Yes | 16 | Black Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |
2.4 GHz Transmission Frequency | |||||||||||
B | Stays Switched (Maintained) | Red | 1 5/16" | Magnetic Charger | Yes | 16 | Red Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |
B | Stays Switched (Maintained) | Red | 1 5/16" | USB Micro B | Yes | 16 | Red Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |
C | Stays Switched (Maintained) | Red | 1 3/16" | USB Micro B | Yes | 16 | Orange Plastic | IEC 61508 SIL2, ISO 13849-1 PLd | IP64 | 0000000 | 000000 |

Receivers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wire Leads | Mounting | Antenna Extension Cords | |||||||||||
Wire Connection Type | No. of | Lg. | Input Voltage | Housing Material | Fasteners Included | No. of Holes | Hole Dia. | Cable Lg., ft. | Specifications Met | Each | Each | ||
900 MHz Transmission Frequency | |||||||||||||
Wire Leads | 4 | 3" | 9V DC-30V DC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 0000000 | 0000000 | 000000 |
Wire Leads | 6 | 3" | 100V AC-240V AC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |
2.4 GHz Transmission Frequency | |||||||||||||
Wire Leads | 4 | 3" | 9V DC-30V DC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |
Wire Leads | 6 | 3" | 100V AC-240V AC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |

Connection Type | Lg., ft. | Environment | Environmental Rating | Each | |
Magnetic Charger × USB A | 3 | Damp, Dusty | IP64 | 0000000 | 000000 |

Connection Type | Lg., ft. | Each | |
USB Micro B × USB A | 3 | 00000000 | 00000 |
Wireless Enabling Pendant Switches
As soon as you take your thumb off the button, these switches wirelessly signal a receiver to cut power to your machine. Also known as deadman switches. Use them when you need to override safety controls to program or service a machine. They’re often used to troubleshoot issues in a robot's working area.
900 MHz switches can be used in any combination of six. Stop multiple machines with one switch, set multiple switches to stop one machine, or anything in between. If you link multiple switches to one receiver, your machine will stop if just one person takes their thumb off their switch. These switches are compatible with frequencies found in U.S. systems.
2.4 GHz switches control up to nine machines if paired with nine receivers. These switches are compatible with frequencies found in European systems.
Antenna extension cords (sold separately) connect a receiver to an antenna, so you can keep the receiver safe inside an enclosure.

No. of Circuits Controlled | Switch Starting Position | Switch Action | Housing Material | Batteries Included | Battery Life, hrs. | Environmental Rating | Specifications Met | Includes | Each | |
900 MHz Transmission Frequency | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
5 | 1 Off (Normally Open) | Springs Back (Momentary) | Red Plastic | Yes | 34 | IP64 | IEC 61508 SIL2, ISO 13849-1 PLd | Charging Cord (Magnetic Charger × USB A) | 0000000 | 0000000 |
2.4 GHz Transmission Frequency | ||||||||||
9 | 1 Off (Normally Open) | Springs Back (Momentary) | Red Plastic | Yes | 16 | __ | IEC 61508 SIL2, ISO 13849-1 PLd | Charging Cord (USB Micro B × USB A) | 0000000 | 000000 |

Receivers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wire Leads | Mounting | Antenna Extension Cords | |||||||||||
Wire Connection Type | No. of | Lg. | Input Voltage | Housing Material | Fasteners Included | No. of Holes | Hole Dia. | Cable Lg., ft. | Specifications Met | Each | Each | ||
900 MHz Transmission Frequency | |||||||||||||
Wire Leads | 4 | 3" | 9V DC-30V DC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 0000000 | 0000000 | 000000 |
Wire Leads | 6 | 3" | 100V AC-240V AC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |
2.4 GHz Transmission Frequency | |||||||||||||
Wire Leads | 4 | 3" | 9V DC-30V DC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |
Wire Leads | 6 | 3" | 100V AC-240V AC | Black Plastic | No | 2 | 3/16" | 3 | IEC 61508 SIL2, ISO 13849-1 PLd | 0000000 | 000000 | 0000000 | 00000 |

Connection Type | Lg., ft. | Environment | Environmental Rating | Each | |
Magnetic Charger × USB A | 3 | Damp, Dusty | IP64 | 0000000 | 000000 |

Connection Type | Lg., ft. | Each | |
USB Micro B × USB A | 3 | 00000000 | 00000 |
Safety Laser Scanners
Monitor a wide area around dangerous machinery. If a person or object gets too close, these scanners signal your relay or controller to either trigger a warning or shut down the machinery. For example, they can slow a robotic arm if someone comes within 20 ft., then stop it completely if they come within 10 ft. You can also set these scanners to respond only when they detect objects of a certain size. Since they continuously monitor 275°, they cover a much wider area than light beam safety barrier switches.
These scanners have a dedicated safety output for triggering emergency stops, and three inputs/outputs that you can configure. The safety output sends two duplicate signals at the same time—also called redundant signals—so even if one fails, the other will stop your equipment. Wire this output to safety relays or safety terminals on a controller. The inputs/outputs can be configured to set off warnings or adjust the scanner’s behavior. When used as outputs, they can send a signal to flash a light, sound an alarm, or slow a machine. When used as inputs, they can signal the scanner to ignore robot arms or other expected objects, while still scanning for people and unexpected objects.
Download free software onto a computer running Windows to set the monitoring distance, the size of the objects you want to detect, and the function of the inputs/outputs. You can also save up to six different configurations on the scanner itself.
Rated IP65, these switches are sealed to keep out dust and low-pressure jets of water. They’re UL and C-UL listed, CE marked, and TUV SUD certified, so they meet U.S. and international safety standards. They also meet EN, ISO, and IEC standards for performance and safety.
You’ll need a power/input/output cable to connect the scanner to your power supply, controller, or relay. Use an ethernet cord to connect the scanner to your computer for programming.
Mount these scanners to a flat surface using holes on the back. Add a mounting bracket to tilt the scanner toward the area you want to monitor. To shield the top of your scanner from falling objects and collisions, mount a protective bracket onto the mounting bracket.


Safety Sensing Distance Range | No. of Safety Outputs | Configurable Input/Output Sensing Distance Range | No. of Configurable Inputs/Outputs | Min. Object Size Detected | Signal Input/Output Type | Input Voltage | Max. Sensing Angle | Wd. | Ht. | Dp. | Housing Material | Housing Color | Each | |
8-Pole M12 Socket Connection | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2"-9.8 ft. | 1 | 2"-131.2 ft. | 3 | 1.2" | PNP | 24V DC | 275° | 4" | 6" | 4.4" | Powder-Coated Aluminum | Yellow | 0000000 | 000000000 |
2"-18 ft. | 1 | 2"-131.2 ft. | 3 | 1.2" | PNP | 24V DC | 275° | 4" | 6" | 4.4" | Powder-Coated Aluminum | Yellow | 0000000 | 00000000 |

Number of Poles | Transmission Speed, Mbps | Wire Gauge | Cord OD | Shielding | Shield Type | Temp. Range, °F | Cord Insulation Material | Color | Each | |
9 1/2 ft. Lg. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
D-Coded—Ethernet Cable Category 5E | ||||||||||
4 | 100 | 24 | 0.26" | Double Shielded | Braid, Foil | -40° to 175° | TPE Rubber | Blue | 00000000 | 000000 |
32 1/2 ft. Lg. | ||||||||||
D-Coded—Ethernet Cable Category 5E | ||||||||||
4 | 100 | 24 | 0.26" | Double Shielded | Braid, Foil | -40° to 175° | TPE Rubber | Blue | 00000000 | 000000 |

Material | Mounting Fasteners Included | Each | |
Zinc-Plated Steel | Yes | 0000000 | 000000 |