Choosing a Proximity Switch
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Choosing an Electrical Switch
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Wireless Self-Powered Limit Switches
Install these limit switches where changing a battery or routing wires might be difficult—they power themselves when a moving object contacts the actuator. Place them up to 330 ft. away from the receiver (sold separately). These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator.
Plunger actuators open or close circuits when objects push against them.
Roller-plunger actuators open or close circuits when an object pushes against the roller, which moves the plunger. The roller moves parallel to the mounting direction, so it helps push the plunger even if the force isn’t straight on. The roller also reduces friction during actuation which prevents wear and tear over time.
Roller-lever actuators open or close circuits when material moves across the switch. The roller reduces friction during actuation which prevents wear and tear over time.
Rod actuators open or close circuits when material pushes against the rod. The rod extends from the body of the actuator, so these switches are ideal when objects actuating the switch are further away.
Use an antenna (sold separately) to increase the maximum transmission range to 984 ft. They also strengthen the signal if there are obstacles between your switch and receiver.
For technical drawings and 3-D models, click on a part number.





Housing | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Circuits Controlled | Max. Transmission Distance, ft. | Transmission Frequency | Switch Action | Actuator Material | Operating Temp. Range, °F | Actuator Height | Lg. | Ht. | Dp. | Housing Material | Specifications Met | Each | ||
Plunger Actuator Style | ||||||||||||||
A | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Zinc | -13° to 131° | 0.4" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 0000000 |
Roller Plunger Actuator Style | ||||||||||||||
B | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Steel | -13° to 131° | 0.8" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||
C | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Plastic | -13° to 131° | 1.7" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |
C | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Steel | -13° to 131° | 1.7" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |
D | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Plastic | -13° to 131° | 1.7"-3.6" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |
D | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Plastic | -13° to 131° | 2.5"-4.3" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |
Rod Actuator Style | ||||||||||||||
E | 1 | 330 | 2,405 MHz | Springs Back (Momentary) | Plastic | -13° to 131° | 3" | 1.2" | 2 1/2" | 0.6" | Plastic | CE Marked, IEC 60947-5, EN 60947-5 | 0000000 | 000000 |

No. of Outputs | Max. Transmission Distance, ft. | Transmission Frequency | Max. Switching Current @ Voltage | Input Voltage | Signal Output Type | Mounting Location | For DIN Rail Size | Wd. | Ht. | Dp. | Environmental Rating | Specifications Met | Each | |
With Screw Terminals | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 | 330 | 2,405 MHz | 200 mA @ 24 V DC | 24V DC | PNP | DIN Rail | 35 mm | 1 7/16" | 4 1/4" | 2 15/16" | IP20 | CE Marked, IEC 60947-1, IEC 60947-5-1, EN 60947-5-1, EN 60947-1 | 0000000 | 0000000 |

Max. Transmission Distance, ft. | Transmission Frequency | Input Voltage | Cable Lg., ft. | Environmental Rating | Specifications Met | Each | |
With Wire Leads | |||||||
---|---|---|---|---|---|---|---|
984 | 2,405 MHz | 24V AC-240V AC, 24V DC-240V DC | 16 | IP65 | UL Listed, CSA Certified, CE Marked | 0000000 | 0000000 |
Extra-Short DC Metallic-Object Proximity Switches


The short body on these switches makes them suitable for tight spaces. Also known as inductive proximity switches, they remotely sense metallic objects even if they’re obscured by water, oil, dirt, or a surface finish. Sensing distance is based on the type of material being sensed. 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). All are rated IP67 for protection from temporary submersion.
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 are also known as non-embeddable or unshielded switches. When mounting, make sure the area around the sensor face is free of metal. These switches have a longer sensing distance than flush switches with the same diameter.
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.
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. | Temp. Range, °F | Environmental Rating | Each | |
Nickel-Plated Housing with Plastic Face | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flush with Wire Leads | |||||||||||||
1 Off (Normally Open) | 12 | 4 | PNP | 10V DC-36V DC | 200mA | 3 | 25.4 | Reverse Polarity Short Circuit | 6 1/2 | -10° to 175° | IP67 | 000000 | 000000 |
1 Off (Normally Open) | 12 | 4 | NPN | 10V DC-36V DC | 200mA | 3 | 25.4 | Reverse Polarity Short Circuit | 6 1/2 | -10° to 175° | IP67 | 000000 | 00000 |
Projecting with Wire Leads | |||||||||||||
1 Off (Normally Open) | 12 | 8 | PNP | 10V DC-36V DC | 200mA | 3 | 29.4 | Reverse Polarity Short Circuit | 6 1/2 | -10° to 175° | IP67 | 000000 | 00000 |
1 Off (Normally Open) | 12 | 8 | NPN | 10V DC-36V DC | 200mA | 3 | 29.4 | Reverse Polarity Short Circuit | 6 1/2 | -10° to 175° | IP67 | 000000 | 00000 |
Rotatable DC Metallic-Object Proximity Switches





Micro
M12 Plug


Turn the face on these switches to sense metallic objects from the front, sides, top, or bottom. They’re a good replacement for limit switches with actuators that often break when hit. Also known as inductive proximity switches, they detect objects even if they’re covered by water, oil, dirt, or a surface finish. They’re often used in conveyor and bin filling systems, refineries, and mills. Sensing distance is based on the type of material being sensed; the distance listed is for mild steel. LED status indicators on the corners mean you can check your switch from any angle. All switches meet American, Canadian, and European safety standards.
You can send PNP or NPN signals from these switches to programmable logic controllers (PLCs). Use Testers for Proximity and Photoelectric Switches to determine the signal output of a switch you’re replacing.
Flush switches, also known as embeddable and shielded switches, are more accurate than projecting switches at close range. They also won’t cause interference when mounted close together. The sensor face mounts evenly with any material, including metal.
Projecting switches, also called non-embeddable and unshielded switches, sense objects farther away than flush switches. But, they require the area around the sensor to be free of metal.
Switches with a 4-pole micro M12 plug connect to cables with a socket (sold separately), so you can quickly connect and disconnect them. To view switch wiring diagrams, select a part number and click Product Detail. Attach switches with screw terminals to optional M12 connectors with a receptacle to convert them to a standard 4-pole M12 plug.
All switches seal out dust and stand up to some submersion. IP69- and IP69K-rated switches also handle high-pressure washdowns.
For technical drawings and 3-D models, click on a part number.
Switches | Cables with Socket | Receptacles | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switch Starting Position | Number of Sensing Positions | Maximum Sensing Distance, mm | Signal Output Type | Input Voltage | Lg., mm | Wd., mm | Ht., mm | Circuit Protection | Temp. Range, °F | Each | Each | Each | |||
Plastic Housing with Plastic Face (IP67)—200mA Current Output | |||||||||||||||
Flush with 4-Pole Micro M12 Plug | |||||||||||||||
1 Off (Normally Open) | 5 | 20 | PNP | 10V DC-36V DC | 54 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 000000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 20 | PNP | 10V DC-36V DC | 54 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
Projecting with 4-Pole Micro M12 Plug | |||||||||||||||
1 Off (Normally Open) | 5 | 35 | PNP | 10V DC-36V DC | 54 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) | 5 | 40 | PNP | 10V DC-36V DC | 54 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
Plastic Housing with Plastic Face (IP68 and IP69)—200mA Current Output | |||||||||||||||
Flush with 4-Pole Micro M12 Plug | |||||||||||||||
1 Off (Normally Open) | 5 | 30 | PNP | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 30 | PNP | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 30 | NPN | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
Flush with M20 Screw Terminal | |||||||||||||||
1 Off (Normally Open) | 5 | 30 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 000000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 30 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 30 | NPN | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
Projecting with 4-Pole Micro M12 Plug | |||||||||||||||
1 Off (Normally Open) | 5 | 50 | PNP | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 50 | PNP | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 50 | NPN | 10V DC-30V DC | 67 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
Projecting with M20 Screw Terminal | |||||||||||||||
1 Off (Normally Open) | 5 | 50 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 50 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 50 | NPN | 10V DC-30V DC | 118 | 40 | 40 | Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
Plastic Housing with Plastic Face (IP68 and IP69K)—200mA Current Output | |||||||||||||||
Flush with 4-Pole Micro M12 Plug | |||||||||||||||
1 Off (Normally Open) | 5 | 20 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 000000 | 00 |
Projecting with M20 Screw Terminal | |||||||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 5 | 40 | PNP | 10V DC-30V DC | 118 | 40 | 40 | Overload Reverse Polarity Short Circuit | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
AC Metallic-Object Proximity Switches



Also known as inductive proximity switches, these remotely sense metallic objects even if they’re obscured by water, oil, dirt, or a surface finish. Sensing distance is based on the type of material being sensed. The distance listed is for mild steel. All are rated IP67 for protection from dust and temporary submersion.
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. They have a longer sensing distance than flush switches with the same diameter.
Switches with a plug connect to cables with a socket (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.
For technical drawings and 3-D models, click on a part number.
Switches | Cables with Socket | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Switch Starting Position | Dia., mm | Max. Sensing Distance, mm | Input Voltage | Current Output | Lg., mm | Features | Temp.Range, °F | Each | Each | ||
Chrome-Plated Brass Housing with Plastic Face | |||||||||||
Flush with 3-Pole Micro 1/2"-20 UNF Plug | |||||||||||
1 Off (Normally Open) | 30 | 10 | 20V AC-250V AC | 400mA | 78 | LED Power Indicator | -10° to 155° | 00000000 | 000000 | 0000000 | 000000 |
Projecting with 3-Pole Micro 1/2"-20 UNF Plug | |||||||||||
1 Off (Normally Open) | 30 | 15 | 20V AC-250V AC | 400mA | 78 | LED Power Indicator | -10° to 155° | 00000000 | 000000 | 0000000 | 00000 |
1 On (Normally Closed) | 12 | 4 | 20V AC-250V AC | 400mA | 68 | LED Power Indicator | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
1 On (Normally Closed) | 18 | 8 | 20V AC-250V AC | 400mA | 78 | LED Power Indicator | -10° to 155° | 00000000 | 00000 | 0000000 | 00000 |
Harsh Environment DC Universal-Object Proximity Switches


Micro
M12 Plug
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.
For technical drawings and 3-D models, click on a part number.
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 | |
Plastic Housing with Plastic Face | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
With 4-Pole Micro M12 Plug | |||||||||||
1 Off (Normally Open) and 1 On (Normally Closed) | 30 | 16 | PNP | 10V DC-40V DC | 200mA | 61 | Reverse Polarity Short Circuit | -20° to 185° | NEMA 6P, NEMA 12, IP68, IP69K | 0000000 | 0000000 |
1 Off (Normally Open) and 1 On (Normally Closed) | 30 | 16 | NPN | 10V DC-40V DC | 200mA | 61 | Reverse Polarity Short Circuit | -20° to 185° | NEMA 6P, NEMA 12, IP68, IP69K | 0000000 | 000000 |
Cable with Socket | 0000000 | Each | 000000 |