Omron WLCA12-2 Adjustable Roller Lever Limit Switch
The Omron WLCA12-2 is an Adjustable Roller Lever Limit Switch engineered for accurate mechanical position detection in industrial automation environments. This standard size limit switch features an adjustable roller lever actuator with an R25 to 89 mm adjustment range, allowing precise alignment with cams and moving machine components. It is equipped with a DPDT two-circuit contact configuration and screw terminal connections for secure field wiring. With a G½ conduit entry and IP67-rated enclosure, the switch ensures dependable operation in dusty and wet conditions. Manufactured by Omron, the WLCA12-2 is part of the Omron Limit Switch, known for mechanical strength and long service life.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLCA12-2 |
Omron WLCA12-2 Adjustable Roller Lever Limit Switch – Technical Overview
| Specification | Value |
|---|---|
| Actuator | Adjustable Roller Lever |
| Lever Adjustment Range | R25 to 89 mm |
| Contact Form | DPDT |
| Contact Configuration | Two-Circuit |
| Rated Switching Capacity | 10 A at 500 VAC |
| Current Rating | 100 mA |
| Voltage Rating | 125 VAC / 30 VDC |
| Terminals | Screw Terminals (G½ conduit) |
| Pretravel (PT) | 25±5° |
| Degree of protection | IP67 |
The Omron WLCA12-2 is widely recognized as an Omron adjustable roller lever limit switch designed for consistent and repeatable position sensing in industrial automation systems. Its DPDT contact form supports reliable switching of control signals, while the screw terminal design ensures stable electrical connections in industrial control panels.
In practical applications, the Omron WLCA12-2 is commonly installed on conveyors, packaging machinery, material handling systems, and automated production equipment. The adjustable roller lever (R25 to 89 mm) enables fine tuning of the actuation point, and the defined pretravel angle of 15° ± 5° allows predictable and accurate switching when contacted by moving machine parts.
Designed for long-term industrial use, the switch combines high mechanical durability with stable electrical characteristics. Its G½ conduit entry, IP67 protection, and wide operating temperature range support reliable performance in harsh environments where precise limit detection and dependable wiring integrity are essential.