Choosing an Electrical Switch
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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 an LED power indicator and LED status indicator show you the status of the line and load phases. They give you extra assurance that your switch is connected and wired correctly.
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.
Terminals and
LED Indicator
Housing | Conduit | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
Polypropylene Plastic Housing | |||||||||||||||
Screw Terminals—LED Power Indicator and LED Status Indicator | |||||||||||||||
| 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | 3PST-1NO/2NC | 3 A @ 24 V DC | 24V DC | 6 | 1.2" | 2.7" | 1.3" | 1 | M20 | IP65 | EN 50047 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 0000000 |
| 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Springs Back (Momentary) | 3PST-1NO/2NC | 3 A @ 24 V DC | 24V DC | 6 | 1.6" | 3.1" | 1.5" | 1 | M20 | IP66, IP67 | EN 50041 UL Listed C-UL Listed CE Marked CCC Marked | 0000000 | 000000 |