Choosing a Proximity Switch
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DC Metallic-Object Proximity Switches



Micro
M12 Plug
Also known as inductive proximity switches, these detect metallic objects even if they’re obscured by water, oil, dirt, or a surface finish. Sensing distance is based on the target material. The distance listed is for mild steel. 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).
Flush switches, also known as embeddable or shielded switches, can be mounted so that the sensor face is level with the surface of any material, including metal. They’re more accurate than projecting switches at close range and can be mounted close together without causing interference.
PTFE-coated switches prevent weld spatter buildup that can trigger false readings or reduce the sensing distance. They will last longer than uncoated switches in welding environments.
Switches with a plug connect to cables with a socket (sold separately), allowing you to quickly connect and disconnect the switch.
IP67 and IP68 rated switches are protected from temporary submersion.
Also available: If you don’t see the switch you need, please select 6693T999 and specify manufacturer and manufacturer part number.
For technical drawings and 3-D models, click on a part number.
Switches | Cables with Sockets | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switch Starting Position | Dia., mm | Max. Sensing Distance, mm | Signal Output Type | Input Voltage | Current Output | No. of Wire Leads | Lg., mm | Circuit Protection | Cable Lead Lg., ft. | Temperature Range, °F | Each | Each | ||
Nickel-Plated Brass Housing with Plastic Face (IP67) | ||||||||||||||
Flush with Wire Leads | ||||||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 12 | 4 | PNP | 10V DC-30V DC | 200mA | 4 | 72 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 000000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 12 | 4 | NPN | 10V DC-30V DC | 200mA | 4 | 72 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 18 | 8 | PNP | 10V DC-30V DC | 200mA | 4 | 60.5 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 18 | 8 | NPN | 10V DC-30V DC | 200mA | 4 | 60.5 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 00000 | 000000 | 00 |
Flush with 4-Pole Micro M12 Plug | ||||||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 12 | 4 | PNP | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 000000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 12 | 4 | NPN | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 18 | 8 | PNP | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 18 | 8 | NPN | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
PTFE-Coated Brass Housing with Plastic Face (IP67) | ||||||||||||||
Flush with 4-Pole Micro M12 Plug | ||||||||||||||
1 Off (Normally Open) | 12 | 4 | PNP | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 4 | NPN | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | PNP | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | NPN | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 30 | 15 | PNP | 10V DC-30V DC | 200mA | __ | 80 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 30 | 15 | NPN | 10V DC-30V DC | 200mA | __ | 80 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 12 | 4 | PNP | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 12 | 4 | NPN | 10V DC-30V DC | 200mA | __ | 70 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 18 | 8 | PNP | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 18 | 8 | NPN | 10V DC-30V DC | 200mA | __ | 75 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 30 | 15 | PNP | 10V DC-30V DC | 200mA | __ | 80 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 30 | 15 | NPN | 10V DC-30V DC | 200mA | __ | 80 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
Stainless Steel Housing with Plastic Face (IP67) | ||||||||||||||
Flush with Wire Leads | ||||||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 8 | 2 | PNP | 10V DC-30V DC | 200mA | 4 | 43 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 8 | 2 | NPN | 10V DC-30V DC | 200mA | 4 | 43 | Overload Reverse Polarity Short Circuit | 6 1/2 | -10° to 155° | 00000000 | 00000 | 000000 | 00 |
Flush with 4-Pole Micro M12 Plug | ||||||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 8 | 2 | PNP | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 8 | 2 | NPN | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
PTFE-Coated Stainless Steel Housing with Plastic Face (IP67) | ||||||||||||||
Flush with 4-Pole Micro M12 Plug | ||||||||||||||
1 Off (Normally Open) | 8 | 2 | PNP | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 8 | 2 | NPN | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 8 | 2 | PNP | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 8 | 2 | NPN | 10V DC-30V DC | 200mA | __ | 65 | Overload Reverse Polarity Short Circuit | __ | -10° to 212° | 00000000 | 00000 | 0000000 | 00000 |
DC Metallic-Object Proximity Switches for Robotic Welding
Check the position of your torch or workpiece for accuracy during robotic welding. These switches are robust enough to handle changes in temperature and magnetic fields from welding to help reduce false triggers. A coating prevents weld spatter buildup to keep readings accurate and maximizes the sensing distance Also known as inductive proximity switches, they’ll detect metallic objects even if they’re obscured by water, oil, dirt, or a surface finish.
Round switches are threaded, making for a quick installation. They have an M12 plug for simple wiring.
Flush switches, also known as embeddable or shielded switches, can be mounted so that the sensor face is level with the surface of any material, including metal. They’re more accurate than projecting switches at close range and can be mounted close together 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. These switches have a longer sensing distance than flush switches with the same diameter.
To determine the signal output of a switch you are replacing, use Testers for Proximity and Photoelectric Switches (not included).
For technical drawings and 3-D models, click on a part number.


Micro
M12 Plug
Switches | Cables with Socket | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switch Starting Position | Dia., mm | Max. Sensing Distance, mm | Signal Output Type | Input Voltage | Current Output | Lg., mm | Circuit Protection | Temp. Range, °F | Environmental Rating | Each | Each | ||
PTFE-Coated Stainless Steel Housing | |||||||||||||
Flush with 4-Pole Micro M12 Plug | |||||||||||||
1 Off (Normally Open) | 8 | 2 | PNP | 10V DC-30V DC | 220mA | 70 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 0000000 | 0000000 | 000000 |
1 Off (Normally Open) | 8 | 2 | NPN | 10V DC-30V DC | 220mA | 70 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 4 | PNP | 10V DC-30V DC | 220mA | 68 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 4 | NPN | 10V DC-30V DC | 220mA | 68 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | PNP | 10V DC-30V DC | 220mA | 81 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | NPN | 10V DC-30V DC | 220mA | 81 | Reverse Polarity Short Circuit | -10° to 245° | IP67 | 0000000 | 000000 | 0000000 | 00000 |
Projecting with 4-Pole Micro M12 Plug | |||||||||||||
1 Off (Normally Open) | 8 | 4 | PNP | 10V DC-30V DC | 220mA | 70 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 8 | 4 | NPN | 10V DC-30V DC | 220mA | 70 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 8 | PNP | 10V DC-30V DC | 220mA | 68 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 8 | NPN | 10V DC-30V DC | 220mA | 68 | Reverse Polarity Short Circuit | -10° to 210° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 16 | PNP | 10V DC-30V DC | 220mA | 79 | Reverse Polarity Short Circuit | -10° to 210° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 16 | NPN | 10V DC-30V DC | 220mA | 79 | Reverse Polarity Short Circuit | -10° to 210° | IP68 | 0000000 | 000000 | 0000000 | 00000 |
Non-Ferrous DC Metallic-Object Proximity Switches


Micro
M12 Plug
Detect aluminum cans, copper tubing, and other metal items that don’t contain iron. These switches won’t react to objects that contain iron, such as steel machine parts, so they help you avoid false positives on filling lines and other assemblies. For example, they can send a signal to dispense liquid only when an aluminum can is underneath, rather than the end of a tray. Also known as inductive proximity switches, these switches detect metallic objects even if they’re obscured by water, oil, dirt, or a surface finish.
These switches are designed to mount flush, so that the sensor face is level with the surface of any material, including metal. Their plug connects to cables with a socket (sold separately) so you can quickly connect and disconnect the switch. To determine the signal output of a switch you are replacing, use Testers for Proximity and Photoelectric Switches (not included).
For technical drawings and 3-D models, click on a part number.
Switches | Cables with Sockets | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switch Starting Position | Dia., mm | Max. Sensing Distance, mm | Signal Output Type | Input Voltage | Current Output | Lg., mm | Circuit Protection | Temperature Range, °F | Environmental Rating | Each | Each | ||
Stainless Steel Housing with Stainless Steel Face | |||||||||||||
Flush with 4-Pole Micro M12 Plug | |||||||||||||
1 Off (Normally Open) | 8 | 2 | PNP | 10V DC-30V DC | 200mA | 70 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 000000 | 0000000 | 000000 |
1 Off (Normally Open) | 8 | 2 | NPN | 10V DC-30V DC | 200mA | 70 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 4 | PNP | 10V DC-30V DC | 200mA | 68 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 12 | 4 | NPN | 10V DC-30V DC | 200mA | 68 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | PNP | 10V DC-30V DC | 200mA | 79 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 18 | 8 | NPN | 10V DC-30V DC | 200mA | 79 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 00000 | 0000000 | 00000 |
1 Off (Normally Open) | 30 | 15 | PNP | 10V DC-30V DC | 200mA | 78 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 000000 | 0000000 | 00000 |
1 Off (Normally Open) | 30 | 15 | NPN | 10V DC-30V DC | 200mA | 78 | Reverse Polarity Short Circuit | -10° to 155° | IP68 | 00000000 | 000000 | 0000000 | 00000 |