Choosing an Electrical Switch
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Circuit Board Push-Button Switches
Send a signal from your circuit board with the push of a button. These switches are small and have pins for through-hole soldering, helping you eliminate wiring and save space on your circuit board. Also known as tactile switches, they’re the same ones you press when typing on a keyboard. You’ll also find them in control panels and interfaces.
Covers fit over projecting button switches.
For technical drawings and 3-D models, click on a part number.
| No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Actuator Color | Switching Current @ Voltage | Max. Voltage  | Initial Contact Resistance, mOhm | Ht. | Wd. | Dp. | For Panel Cutout Dia. | For Panel Cutout Dia. | Each | |
Plastic Actuator with Solder Connection | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Flush | |||||||||||||||
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 4 | SPST-NO | Ivory | 50 mA @ 24 V DC | 24V DC | 100 | 0.17" | 0.24" | 0.24" | 3.5 mm | 0.16" | 0000000 | 00000 |
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 4 | SPST-NO | Orange | 50 mA @ 24 V DC | 24V DC | 100 | 0.17" | 0.24" | 0.24" | 3.5 mm | 0.16" | 0000000 | 000 |
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 4 | SPST-NO | Red | 50 mA @ 24 V DC | 24V DC | 100 | 0.17" | 0.24" | 0.24" | 3.5 mm | 0.16" | 0000000 | 000 |
Projecting | |||||||||||||||
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 4 | SPST-NO | Yellow | 50 mA @ 24 V DC | 24V DC | 100 | 0.29" | 0.24" | 0.24" | 3.5 mm | 0.16" | 0000000 | 000 |
Grounded Plastic Actuator with Solder Connection | |||||||||||||||
Flush | |||||||||||||||
| 1 | 1 Off (Normally Open) | Springs Back (Momentary) | 5 | SPST-NO | Yellow | 50 mA @ 24 V DC | 24V DC | 100 | 0.17" | 0.24" | 0.24" | 3.5 mm | 0.16" | 0000000 | 000 |
Ultra-Precision Wet-Location Limit Switches
These switches actuate with the slightest push for a high degree of accuracy. All are rated IP67 for protection from wet locations and temporary submersion. They’re often used for determining manufacturing tolerances and detecting minute expansions and contractions.
For technical drawings and 3-D models, click on a part number.
| No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht., mm | Wire Connection Type | No. of Wire Leads | Cable Lead Lg., ft. | Housing Ht., mm | Housing Material | Actuator Material | Mounting Thread Size | Each | |
| 1 | 1 On (Normally Closed) | Springs Back (Momentary) | SPST-NC | 50 mA @ 24 V AC, 2 mA @ 15 V DC | 24V AC 15V DC | -4° to 167° | 4 | Wire Leads | 2 | 2.5 | 21 | Nickel-Plated Brass | Ruby | M8 | 0000000 | 0000000 |
Ultra-Precision Limit Switches
These switches actuate with the slightest push for a high degree of accuracy. They’re often used for determining manufacturing tolerances and detecting minute expansions and contractions.
For technical drawings and 3-D models, click on a part number.
| No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, °F | Actuator Ht., mm | Wire Connection Type | No. of Wire Leads | Cable Lead Lg., ft. | Housing Ht., mm | Housing Material | Actuator Material | Mounting Thread Size | Environmental Rating | Each | |
| 1 | 1 On (Normally Closed) | Springs Back (Momentary) | SPST-NC | 50 mA @ 24 V AC, 2 mA @ 15 V DC | 24V AC 15V DC | -4° to 167° | 11.5 | Wire Leads | 2 | 2 1/2 | 10 | Nickel-Plated Brass | Zirconium Ceramic | M8 | IP50 | 0000000 | 0000000 |