Choosing an Electrical Switch
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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 plunger or cross roller plunger actuator have a roller that moves when an object pushes the actuator. This reduces friction during actuation to limit wear and tear on your switch.
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 4-pole micro M12 plug connect to cables with a socket (sold separately), allowing you to quickly connect and disconnect the switch.
Styles E and F let you adjust the actuator’s height to align it with your target.
Switches rated IP67 are protected against dust and temporary submersion.
For technical drawings and 3-D models, click on a part number.
Switches | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Housing | Cables with Socket | ||||||||||||||||
| 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 | Environmental Rating | Each | Each | ||
Plunger Actuator Style | |||||||||||||||||
With 4-Pole Micro M12 Plug | |||||||||||||||||
| A | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 250 V AC, 250 V DC | 250V AC 250V DC | -22° to 158° | 0.8" | 1.1" | 2.5" | 1.2" | Plastic | IP67 | 00000000 | 000000 | 0000000 | 000000 |
Roller Plunger Actuator Style | |||||||||||||||||
With 4-Pole Micro M12 Plug | |||||||||||||||||
| B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 250 V AC, 250 V DC | 250V AC 250V DC | -22° to 158° | 1.2" | 1.1" | 2.5" | 1.2" | Plastic | IP67 | 00000000 | 00000 | 0000000 | 00000 |
Roller Lever Actuator Style | |||||||||||||||||
With 4-Pole Micro M12 Plug | |||||||||||||||||
| D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 250 V AC, 250 V DC | 250V AC 250V DC | -22° to 158° | 1.5" | 1.1" | 2.5" | 1.2" | Plastic | IP67 | 00000000 | 00000 | 0000000 | 00000 |
| E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 3 A @ 250 V AC, 250 V DC | 250V AC 250V DC | -22° to 158° | 1.5"-3.3" | 1.1" | 2.5" | 1.2" | Plastic | IP67 | 00000000 | 00000 | 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 roller plunger or cross roller plunger actuator have a roller that moves when an object pushes the actuator. This reduces friction during actuation to limit wear and tear on your switch.
Switches with a 4-pole micro M12 plug connect to cables with a socket (sold separately), allowing you to quickly connect and disconnect the switch.
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. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 30 V DC | 30V DC | 14° to 158° | 0.6" | 1.6" | 2.2" | 0.6" | Aluminum | 00000000 | 0000000 |
| B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC | 125V AC | 14° to 158° | 0.6" | 1.6" | 2.2" | 0.6" | Aluminum | 00000000 | 000000 |
Roller Plunger Actuator Style | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 30 V DC | 30V DC | 14° to 158° | 1" | 1.6" | 2.2" | 0.6" | Aluminum | 00000000 | 000000 |
| C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC | 125V AC | 14° to 158° | 1" | 1.6" | 2.2" | 0.6" | Aluminum | 00000000 | 000000 |
Cross Roller Plunger Actuator Style | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC | 125V AC | 14° to 158° | 0.9" | 1.6" | 2.2" | 0.6" | Aluminum | 00000000 | 000000 |
| Cable with Socket for Switches with 4-Pole Micro M12 Plugs | 0000000 | Each | 000000 |
Enclosed Wet-Location Snap-Acting Switches
Rated IP67, these switches have an enclosure that shields their interior during temporary submersion. They open and close circuits in a snap—their quick actuation limits arcing and keeps contacts from sticking. These switches are often used to indicate an open appliance or enclosure door. You can also use them inside limit, pressure, and temperature switches. Switches with a plunger actuator require a push to actuate, similar to a button.
Switches with a roller plunger actuator have a roller that moves parallel to the body length when an object pushes the actuator. This reduces friction to limit wear and tear on your switch.
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 | Lg. | Ht. | Dp. | Specifications Met | Each | |
Plunger Actuator Style | ||||||||||||||
With 39" Wire Leads | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 250 V AC, 0.5 A @ 125 V DC | 250V AC 250V DC | 15° to 175° | 0.45" | 3 | 2.76" | 1.61" | 0.85" | UL Recognized Component, CE Marked | 0000000 | 0000000 |
Plunger Actuator Style for 9/16" Panel Cutout Dia. | ||||||||||||||
With 39" Wire Leads | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 250 V AC, 0.5 A @ 125 V DC | 250V AC 250V DC | 15° to 175° | 0.68" | 3 | 2.76" | 1.61" | 0.85" | UL Recognized Component, CE Marked | 0000000 | 000000 |
Roller Plunger Actuator Style for 9/16" Panel Cutout Dia. | ||||||||||||||
With 39" Wire Leads | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 250 V AC, 0.5 A @ 125 V DC | 250V AC 250V DC | 15° to 175° | 1.04" | 3 | 2.76" | 1.61" | 0.85" | UL Recognized Component, CE Marked | 0000000 | 000000 |
With 108" Wire Leads | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 10 A @ 250 V AC, 0.5 A @ 125 V DC | 250V AC 250V DC | 15° to 175° | 1.04" | 3 | 2.76" | 1.61" | 0.85" | UL Recognized Component, CE Marked | 0000000 | 000000 |