Choosing an Electrical Switch
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Mil. Spec. Washdown Snap-Acting Switches
Keep out dirt and moisture—the sealed housing on these switches is watertight and meet MIL-PRF-8805. They’re sized to fit in the tiniest of spaces. To minimize arcing and prevent contacts from sticking, they open and close circuits quickly. They’re often used as door-open indicators on appliances and enclosures or as an internal component in limit, pressure, and temperature switches.
Switches with a plunger actuator require a push to actuate.
Switches with a roller lever actuator allow parts to glide across the actuation surface with less friction than standard levers.
For technical drawings and 3-D models, click on a part number.
Wire Leads | Housing | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Lg. | Lg. | Ht. | Dp. | Lever Lg. | Each | |
Plunger Actuator Style | ||||||||||||||||
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | SPST-NO | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.15" | Wire Leads | 2 | 12" | 0.88" | 0.6" | 0.35" | __ | 0000000 | 0000000 |
| 1 | 1 On (Normally Closed) | Springs Back (Momentary) | SPST-NC | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.15" | Wire Leads | 2 | 12" | 0.88" | 0.6" | 0.35" | __ | 0000000 | 000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.15" | Wire Leads | 3 | 12" | 0.88" | 0.6" | 0.35" | __ | 0000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||||
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | SPST-NO | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.46" | Wire Leads | 2 | 12" | 0.88" | 0.6" | 0.34" | 0.94" | 0000000 | 000000 |
| 1 | 1 On (Normally Closed) | Springs Back (Momentary) | SPST-NC | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.46" | Wire Leads | 2 | 12" | 0.88" | 0.6" | 0.34" | 0.94" | 0000000 | 000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 5 A @ 30 V DC | 250V AC 30V DC | -65° to 221° | 0.46" | Wire Leads | 3 | 12" | 0.88" | 0.6" | 0.34" | 0.94" | 0000000 | 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.
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 4-pole micro M12 plug quickly connect and disconnect from your switch. Use cables (sold separately) to wire your switch connection to your setup.
For technical drawings and 3-D models, click on a part number.
Micro
M12 Plug
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. | Lever Lg. | Specifications Met | Each | |
Plunger Actuator Style for 9/16" Panel Cutout Dia. | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 0.1 A @ 30 V DC | 30V DC | 45° to 155° | 0.79" | 2.24" | 1.3" | 0.71" | __ | EN 60947-5-1 | 0000000 | 0000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 30 V DC | 30V DC | 45° to 155° | 0.79" | 2.24" | 1.3" | 0.71" | __ | EN 60947-5-1 | 0000000 | 000000 |
Roller Plunger Actuator Style for 9/16" Panel Cutout Dia. | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 0.1 A @ 30 V DC | 30V DC | 45° to 155° | 1.06" | 2.24" | 1.3" | 0.71" | __ | EN 60947-5-1 | 0000000 | 000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 30 V DC | 30V DC | 45° to 155° | 1.06" | 2.24" | 1.3" | 0.71" | __ | EN 60947-5-1 | 0000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||
With 4-Pole Micro M12 Plug | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 0.1 A @ 30 V DC | 30V DC | 45° to 155° | 0.73" | 2.24" | 1.3" | 0.71" | 0.79" | EN 60947-5-1 | 0000000 | 000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 30 V DC | 30V DC | 45° to 155° | 0.73" | 2.24" | 1.3" | 0.71" | 0.79" | EN 60947-5-1 | 0000000 | 000000 |
Light-Touch Subminiature Snap-Acting Switches
Actuate these switches with a fraction of the force of other subminiature switches for increased responsiveness. They’re a good choice if you need reliable actuation even from a light touch. Among the smallest snap-acting switches we offer, they fit into the tiniest of spaces. To minimize arcing and prevent contacts from sticking, they open and close circuits quickly. They’re often used as door-open indicators on enclosures or as internal components in limit, pressure, and temperature switches.
Switches with a plunger actuator require a push to actuate.
Switches with a lever actuator have an arm that increases the size of the actuation surface.
Switches with a roller lever actuator allow parts to glide across the actuation surface with less friction than standard levers. This prevents wear and tear over time.
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 Terminals | Lg. | Ht. | Dp. | Lever Lg. | Each | |
Plunger Actuator Style | ||||||||||||||
With Quick-Disconnect Terminals | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.09" | 3 | 0.78" | 0.36" | 0.25" | __ | 00000000 | 000000 |
With Solder Lugs | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.09" | 3 | 0.78" | 0.36" | 0.25" | __ | 00000000 | 00000 |
With Solder Pin Terminals | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.09" | 3 | 0.78" | 0.36" | 0.25" | __ | 00000000 | 00000 |
Lever Actuator Style | ||||||||||||||
With Solder Lugs | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.16" | 3 | 0.78" | 0.36" | 0.25" | 0.86" | 00000000 | 00000 |
Roller Lever Actuator Style | ||||||||||||||
With Quick-Disconnect Terminals | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.38" | 3 | 0.78" | 0.36" | 0.25" | 0.81" | 00000000 | 00000 |
With Solder Lugs | ||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 1 A @ 125 V AC, 1 A @ 30 V DC | 250V AC | -65° to 250° | 0.38" | 3 | 0.78" | 0.36" | 0.25" | 0.81" | 00000000 | 00000 |
Ultra-Miniature Snap-Acting Switches
Trigger actions in devices as small as phones and drones. The smallest snap-acting switches we offer, these switches fit into the tiniest of spaces and help keep weight to a minimum. Because snap-acting switches open and close circuits faster than other switches—reducing the time that contacts are near one another—they prevent contacts from sticking. They also minimize the chance of arcing, so electricity won’t jump across contacts.
Plunger actuator switches send a signal when the actuator is pushed directly downward. They have a small footprint, reducing the risk of accidental switching.
Lever actuator switches have a larger surface area than plunger actuator switches and can be pushed down by front-to-back movement, so they require less precision to activate.
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 Terminals | Lg. | Ht. | Dp. | Lever Lg. | Environmental Rating | Pkg. Qty. | Pkg. | |
Plunger Actuator Style | ||||||||||||||||
With Solder Pin Terminals | ||||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 0.3 A @ 30 V DC | 30V DC | -40° to 185° | 0.1" | 3 | 0.58" | 0.35" | 0.21" | __ | IP67 | 5 | 0000000 | 000000 |
Lever Actuator Style | ||||||||||||||||
With Solder Pin Terminals | ||||||||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 0.3 A @ 30 V DC | 30V DC | -40° to 185° | 0.11" | 3 | 0.58" | 0.35" | 0.21" | 0.56" | IP67 | 5 | 0000000 | 00000 |
Low-Profile Wet-Location 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. They’re often used on conveyor systems and elevators.
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 | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.2" | 4 | 9.5 | 1.6" | 1.9" | 0.6" | Aluminum | 0000000 | 0000000 |
Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
| B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Cross Roller Plunger Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
| C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Roller Lever Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
| E | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 2" | 4 | 9.5 | 1.6" | 2" | 0.6" | Aluminum | 0000000 | 000000 |
Wobble Stick Actuator Style | ||||||||||||||||
With Wire Leads | ||||||||||||||||
| G | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 3.6" | 4 | 9.5 | 1.6" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |
Sealed Wet-Location Limit Switches
Sealed actuators prevent these switches from jamming, even when exposed to sand, mud, or dirt. They're rated IP67 for temporary submersion. They have a slim design and can be stacked together or fit into narrow spaces. 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 on conveyor systems and elevators.
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. | Wire Connection Type | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Each | ||
Plunger Actuator Style | |||||||||||||||||
| B | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 0.6" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 0000000 |
Roller Plunger Actuator Style | |||||||||||||||||
| C | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 1" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |
Cross Roller Plunger Actuator Style | |||||||||||||||||
| D | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 5 A @ 250 V AC, 4 A @ 30 V DC | 250V DC 250V AC | 14° to 158° | 1" | Wire Leads | 4 | 9.5 | 1.3" | 1.9" | 0.6" | Aluminum | 0000000 | 000000 |