Sense objects in hazardous locations with these intrinsically safe switches. Unlike standard proximity switches, they use a NAMUR signal to operate at a low current and voltage, so they won’t ignite or produce sparks when used. Switches meet ATEX international certification to protect against explosion in environments containing flammable gases and combustible dust. These switches must be connected to the required barriers (sold separately), which reduce the current and voltage flowing into the hazardous location from your power source. While the switches can safely be used in hazardous areas, the barriers must be installed in a separate nonhazardous area.

Also known as capacitive proximity switches, they sense both metallic and nonmetallic objects, but their strength is in detecting plastics, liquids, powder, granular materials, and clear targets. The larger the size of the sensor, the greater your sensing distance is. They're often used with HVAC systems and programmable logic controllers (PLCs). Switches meet various domestic and international safety standards.

To view switch wiring diagrams, select a part number and click Product Detail.

Mount flush switches so that the sensor face is level with the surface of your material. Also known as embeddable or shielded switches, they’re more accurate than projecting switches at close range and can be mounted close together on any surface without causing interference. Projecting switches, also known as non-embeddable or unshielded switches, must be mounted with the area around the sensor face free of metal.

All switches are protected from dust and washdowns. IP67 switches protect against brief submersion. IP68 switches protect against prolonged submersion.

Mount these flat switches to a base or rail. Also known as capacitive proximity switches, they remotely sense both metallic and nonmetallic objects but their strength is in sensing materials such as plastic, ceramic, and clear targets. Often used with programmable logic controllers (PLCs), they produce PNP or NPN signal output. To determine the signal output of a switch you are replacing, use Testers for Proximity and Photoelectric Switches (not included). All are projecting switches, and must be mounted with the area around the sensor face free of metal. They’re rated IP68 for protection from washdowns and temporary submersion.

Also available: If you don’t see the switch you need, please select 6693T999 and specify manufacturer and manufacturer part number.

Rated NEMA 6P, 12, IP68 and IP69K, these switches protect against corrosion and high-pressure, high-temperature washdowns. Also known as capacitive proximity switches, they remotely sense both metallic and nonmetallic objects but their strength is in sensing materials such as plastic, ceramic, and clear targets. They’re often used with programmable logic controllers (PLCs) and produce PNP or NPN signal output. To determine the signal output of a switch you are replacing, use Testers for Proximity and Photoelectric Switches (not included). They mount flush with the surface of any material, including metal, and are also known as embeddable or shielded switches. The 4-pole Micro M12 plug connects to cables with sockets (sold separately), allowing you to quickly connect and disconnect the switch.

Also available: If you don’t see the switch you need, please select 6693T999 and specify manufacturer and manufacturer part number.