Choosing an Electrical Switch
More
Limit Switches






When a moving object contacts the actuator on these switches, they open or close a circuit. They have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects—for instance, a box on a conveyor runs into the switch, stopping the conveyor.
Switches with a plunger actuator require a push to actuate, similar to a button.
Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear on your switch.
Switches with a rod actuator use a rod extending out of the body to actuate, so they’ll activate even if an object is far away.
Switches with a T-rod actuator have four rods extending in different directions from a pivot point. If an object contacts any of the rods from any direction, these switches actuate. Since they have such a large actuation area, they’re great for detecting moving parts when your machine tool isn’t perfectly aligned.
Switches with a wobble stick actuator have an arm that rotates 360°, so you don’t need to align it in a specific direction. Since the actuator is flexible, it won’t snap if pushed backward. That makes these switches a great choice for systems that get jammed often.
Styles E and F let you adjust the actuator’s height to align it with your target.
Switches rated NEMA 13 are protected against dirt and oil/coolant spraying. Switches rated IP67 are protected against dust and temporary submersion.
For technical drawings and 3-D models, click on a part number.
Housing | Conduit | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Lg. | Ht. | Dp. | Housing Material | Trade Size | Thread Size | Environmental Rating | Each | |
Plunger Actuator Style | |||||||||||||||||
With Screw Terminals | |||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 200° | 0.8" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 0000000 |
A | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 5 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 200° | 0.8" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
Roller Lever Actuator Style | |||||||||||||||||
With Screw Terminals | |||||||||||||||||
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 1.2" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
D | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 5 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 1.2" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 1.2"-3.3" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
E | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 5 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 1.2"-3.3" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
Rod Actuator Style | |||||||||||||||||
With Screw Terminals | |||||||||||||||||
F | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 0.5"-4.3" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
F | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 5 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 250° | 0.5"-11.8" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
T-Rod Actuator Style | |||||||||||||||||
With Screw Terminals | |||||||||||||||||
G | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Stays Switched (Maintained) | DPDT | 10 A @ 240 V AC, 250 V DC | 240V AC 250V DC | -13° to 158° | 7.9" | 3.4" | 3.7" | 2.1" | Zinc | __ | PG-13.5 | IP54 | 00000000 | 000000 |
Wobble Stick Actuator Style | |||||||||||||||||
With Screw Terminals | |||||||||||||||||
H | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 200° | 4.5" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
H | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 5 A @ 240 V AC, 24 V DC | 600V AC 250V DC | 10° to 200° | 4.5" | 1.9" | 4.5" | 1.8" | Zinc | 1/2 | __ | NEMA 6P, NEMA 13, IP66, IP67 | 00000000 | 000000 |
Build-Your-Own Limit Switches
Combine an actuator and a switch to assemble the exact limit switch you need. These switches have the rapid-closing action of a snap-acting switch, but have a larger actuator for large objects. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used for conveyor systems and elevators. Each actuator style is compatible with all housing styles and vice versa.
Switches with a polypropylene plastic housing are lighter in weight than metal switches. Switches with a zinc housing are more durable than those with a plastic housing.
Switches with a 4-pole micro M12 plug quickly connect and disconnect from your setup. Use cables (sold separately) to wire your switch connection to your setup.
Switches with 2 conduit connections allow you to wire switches side by side, so you can save space and simplify your wiring.
IP65 switches protect against dust and splashing water. IP66 switches protect against dust and washdowns. IP67 switches protect against dust and temporary submersion.
For technical drawings and 3-D models, click on a part number.

Screw
Terminals

4-Pole
Micro M12 Plug
Switches | |||||||||||||||||
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Housing | Conduit | Cables | |||||||||||||||
No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | No. of Terminals | Lg. | Ht. | Dp. | No. of Connections | Thread Size | Environmental Rating | Specifications Met | Each | Each | ||
Polypropylene Plastic Housing | |||||||||||||||||
Screw Terminals | |||||||||||||||||
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 6 A @ 240 V AC, 3 A @ 24 V DC | 400V AC 400V DC | 4 | 1.2" | 2.7" | 1.3" | 1 | M20 | IP65 | EN 50047 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 000000 | 00 |
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 6 A @ 240 V AC, 3 A @ 24 V DC | 400V AC 400V DC | 4 | 1.6" | 3.1" | 1.5" | 1 | M20 | IP66, IP67 | EN 50041 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 00000 | 000000 | 00 |
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 6 A @ 240 V AC, 3 A @ 24 V DC | 400V AC 400V DC | 4 | 2" | 2.1" | 1.3" | 2 | M20 | IP66, IP67 | EN 50047 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 000000 | 00 |
4-Pole Micro M12 | |||||||||||||||||
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 4 A @ 240 V AC, 3 A @ 24 V DC | 250V AC 250V DC | __ | 1.2" | 2.7" | 1.3" | __ | __ | IP65 | EN 50047 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 0000000 | 000000 |
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 4 A @ 240 V AC, 3 A @ 24 V DC | 250V AC 250V DC | __ | 1.6" | 3.1" | 1.5" | __ | __ | IP67 | EN 50041 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 0000000 | 00000 |
Zinc Housing | |||||||||||||||||
Screw Terminals | |||||||||||||||||
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 6 A @ 240 V AC, 3 A @ 24 V DC | 400V AC 400V DC | 4 | 1.2" | 2.7" | 1.3" | 1 | M20 | IP66, IP67 | EN 50047 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 000000 | 00 |
2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Springs Back (Momentary) | DPST-1NO/1NC | 6 A @ 240 V AC, 3 A @ 24 V DC | 400V AC 400V DC | 4 | 1.6" | 3.1" | 1.4" | 1 | M20 | IP66, IP67 | EN 50041 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 | 000000 | 00 |
Low-Profile Limit Switches



Stack these slim switches together, or fit them into tight spaces. They're rated IP67 for protection from temporary submersion. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but have a larger actuator for large objects. They’re often used on conveyor systems and elevators.
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.
Switches with plastic or powder-coated zinc housings are rated NEMA 4 and 13 for protection from washdowns and oil/coolant spraying.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.2" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 000000 |
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.2" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.6" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 00000 |
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.6" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
D | 2 | 2 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.6" | 8 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 00000 |
D | 2 | 2 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 0.6" | 8 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
Roller Lever Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 2.1" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 00000 |
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 2.1" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
E | 2 | 2 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 2.1" | 8 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 00000 |
E | 2 | 2 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 250V DC 240V AC | -13° to 158° | 2.1" | 8 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
Sealed Low-Profile Limit Switches

A sealed actuator prevents these switches from jamming, even when exposed to sand, mud, or dirt. They're also rated IP67 for temporary submersion. With a slim design, you can stack them or fit them in tight spaces. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects. For instance, a box on a conveyor runs into the switch, stopping the conveyor.
Switches with a plunger actuator require a push to actuate, similar to a button.
Switches with a powder-coated zinc or plastic housing are rated NEMA 4 and 13 for protection from washdowns and oil/coolant spraying.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 240V AC 250V DC | -13° to 158° | 1.3" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | 0000000 | 000000 |
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.55 A @ 125 V DC | 240V AC 250V DC | -13° to 158° | 1.3" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc | 0000000 | 00000 |
Compact Safety Limit Switches






Shorter and thinner than other safety limit switches, these are sized to fit tight spaces. They protect machinery and ensure the safety of personnel. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. They send a signal to your circuit when an object hits the actuator—for instance, a box on a conveyor runs into the switch, stopping the conveyor. They open and close circuits as fast as snap-acting switches, but they have a bigger actuator for large objects. All are NEMA and IP rated for protection from washdowns.
Switches with a plunger actuator require a push to activate, similar to a button.
Switches with a roller plunger actuator have a roller that moves parallel to the mounting direction when an object pushes the actuator. This reduces friction during actuation to limit wear and tear.
Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear.
Switches with a wobble stick actuator have an arm that rotates 360°, so you don’t need to align it in a specific direction. The actuator won’t snap if pushed backward, such as if there’s a jam in your system.
Styles E and F have an actuator that allows you to adjust its height, making it easier to align the switch with the target during installation.
NEMA 13 and IP67 rated switches are protected from oil/coolant spraying and temporary submersion.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | Lg. | Ht. | Dp. | Housing Material | Environmental Rating | Each | |
Plunger Actuator Style | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.27 A @ 250 V DC | 250V DC 240V AC | -40° to 185° | 0.7" | Screw Terminals | 1.2" | 2.6" | 1.2" | Plastic | NEMA 4X, NEMA 13, IP66, IP67 | 00000000 | 000000 |
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 0.5" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 000000 |
Roller Plunger Actuator Style | ||||||||||||||||
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.27 A @ 250 V DC | 250V DC 240V AC | -40° to 185° | 1.1" | Screw Terminals | 1.2" | 2.6" | 1.2" | Plastic | NEMA 4X, NEMA 13, IP66, IP67 | 00000000 | 00000 |
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 1.2" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 4 A @ 24 V DC | 240V AC 24V DC | -22° to 176° | 1.1" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4, IP65 | 00000000 | 000000 |
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.27 A @ 250 V DC | 250V DC 240V AC | -40° to 185° | 2" | Screw Terminals | 1.2" | 2.6" | 1.2" | Plastic | NEMA 4X, NEMA 13, IP66, IP67 | 00000000 | 00000 |
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.27 A @ 250 V DC | 250V DC 240V AC | -40° to 185° | 1.6"-3.3" | Screw Terminals | 1.2" | 2.6" | 1.2" | Plastic | NEMA 4X, NEMA 13, IP66, IP67 | 00000000 | 00000 |
Wobble Stick Actuator Style | ||||||||||||||||
G | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 240 V AC, 0.27 A @ 250 V DC | 250V DC 240V AC | -40° to 185° | 4.9" | Screw Terminals | 1.2" | 2.4" | 1.2" | Plastic | NEMA 4X, NEMA 13, IP66, IP67 | 00000000 | 00000 |
Safety Limit Switches


Protect machinery and ensure the safety of personnel—these switches have positive-force contacts that will open the circuit when actuated even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects—for instance, a box on a conveyor runs into the switch, stopping the conveyor.
Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear on your switch.
Switches with a rod actuator use a rod extending out of the body to actuate, so they’ll activate even if an object is far away.
Styles D, E, and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.
Switches with a steel actuator are more durable than switches with a plastic actuator. They also handle higher loads.
Switches with a plastic actuator limit wear and tear on passing objects better than switches with a steel actuator.
For technical drawings and 3-D models, click on a part number.
Housing | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Actuator Material | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | Lg. | Ht. | Dp. | Housing Material | Environmental Rating | Each | |
Roller Lever Actuator Style | |||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | Plastic | 3 A @ 240 V AC, 1.5 A @ 24 V DC | 240V AC 24V DC | -22° to 165° | 1.5" | Screw Terminals | 1.7" | 2.9" | 1.6" | Plastic | NEMA 4X, IP66, IP67 | 00000000 | 0000000 |
Rod Actuator Style | |||||||||||||||||
F | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | Steel | 3 A @ 240 V AC, 1.5 A @ 24 V DC | 240V AC 24V DC | -22° to 165° | 0.5"-8" | Screw Terminals | 1.7" | 2.9" | 1.6" | Plastic | NEMA 4X, IP66, IP67 | 00000000 | 000000 |
Manual-Reset Safety Limit Switches



Prevent equipment from automatically restarting—these switches must be manually reset each time they're actuated. Pull the knob to reset. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. These switches send a signal to your circuit when an object hits the actuator—for instance, a box on a conveyor runs into the switch, stopping the conveyor. They open and close circuits as fast as snap-acting switches, but they have a bigger actuator for large objects.
Rated IP67, these switches seal out water if they’re washed down or briefly submersed.
Styles B and C have a roller lever actuator that allows parts to glide across the actuation surface with minimal friction. Style C have an actuator that allows you to adjust its height, making it easier to align the switch with the target during installation.
For technical drawings and 3-D models, click on a part number.
Housing | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | Wire Connection Type | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Conduit Thread Size | Each | |
Plunger Actuator Style | |||||||||||||||||
A | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 1" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 000000 |
Roller Lever Actuator Style | |||||||||||||||||
B | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 2.4" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 00000 |
C | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | DPST-1NO/1NC | 10 A @ 240 V AC, 2.5 A @ 125 V DC | 250V DC 300V AC | -22° to 158° | 2.1"-3.9" | Screw Terminals | 4 | 1.2" | 3.4" | 1.2" | Plastic | M20 | 0000000 | 00000 |
Washdown Limit Switches








Rated NEMA 3S and IP69K, these switches can handle washdowns with high pressures and temperatures. They’re also protected from oil/coolant spraying, precipitation, and temporary submersion. When an object in motion contacts the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects—for instance, a box on a conveyor runs into the switch, stopping the conveyor.
Switches with a plunger actuator require a push to actuate, similar to a button.
Switches with a roller plunger actuator trigger just like a plunger actuator but reduce friction during actuation thanks to their roller. This limits wear and tear on the switch.
Switches with a roller lever actuator combine the larger actuation area of a standard lever with a smooth gliding roller actuator. They minimize friction to limit wear and tear on your switch.
Switches with a rod actuator use a rod extending out of the body to actuate, so they’ll activate even if an object is far away.
Switches with a wobble stick actuator have an arm that rotates 360°, so you don’t need to align it in a specific direction. Since the actuator is flexible, it won’t snap if pushed backward. That makes these switches a great choice for systems that get jammed often.
Styles D, E, and F let you adjust the actuator’s height to align it with your target.
For technical drawings and 3-D models, click on a part number.
Housing | ||||||||||||||||
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Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | |
Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 14° to 221° | 1.5" | 5 | 8 | 1.5" | 3.1" | 1.6" | Zinc | 00000000 | 0000000 |
A | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 14° to 221° | 1.5" | 5 | 8 | 1.5" | 3.1" | 1.6" | Zinc | 00000000 | 000000 |
Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 125 V DC | 600V AC 250V DC | 14° to 221° | 1.9" | 5 | 8 | 1.5" | 3.1" | 1.6" | Zinc | 0000000 | 000000 |
B | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 14° to 221° | 1.9" | 5 | 8 | 1.5" | 3.1" | 1.6" | Zinc | 00000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 1.5" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
C | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 1.5" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 1"-3.75" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
D | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 1"-3.75" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
Rod Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 0"-5.5" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
E | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 0"-5.5" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
Wobble Stick Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
F | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 0"-2.25" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
F | 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 10 A @ 240 V AC, 1 A @ 250 V DC | 240V AC 250V DC | 10° to 200° | 0"-5" | 5 | 8 | 1.5" | 4.6" | 1.6" | Zinc | 00000000 | 000000 |
G | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 240 V AC, 1 A @ 125 V DC | 600V AC 250V DC | 14° to 221° | 13.6" | 5 | 8 | 1.5" | 3.1" | 1.6" | Zinc | 0000000 | 000000 |
Air-Actuated Relays

Also known as an air-to-electric switch, this relay converts an air signal to an electric signal. Use it to actuate solenoid valves and other electric components from your pneumatic control system.
Air Connection | Conduit Connection | |||||||||||||
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Number of Terminals | Switching Current @ 240V AC | Max. Switching Voltage | Air Pressure, psi | Pipe Size | Thread Type | Gender | Ht. | Wd. | Dp. | Trade Size | Thread Type | Gender | Each | |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||
3 | 15A | 250V AC | 8-100 | 1/8 | NPT | Female | 3.6" | 1" | 3.1" | 1/2 | NPSM | Female | 00000000 | 0000000 |