Omron WLCA12-TH Adjustable Roller Lever Limit Switch
The Omron WLCA12-TH is an Adjustable roller lever Limit Switch designed for precise mechanical position detection in industrial automation applications. This standard size limit switch features an adjustable roller lever with an R25 to 89 mm operating range, enabling flexible installation across varying cam and actuator distances. With a DPDT two-circuit contact structure, it supports reliable switching of multiple control signals under demanding operating conditions. Built with a rugged enclosure and IP67 ingress protection, the switch ensures stable operation in dusty and wet environments. Manufactured by Omron, the WLCA12-TH is part of the Omron Limit Switch, recognized for mechanical strength, long service life, and consistent electrical performance.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLCA12-TH |
Omron WLCA12-TH Adjustable Roller Lever Limit Switch ā 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) | 15±5° |
| Degree of protection | IP67 |
The Omron WLCA12-TH is widely recognized as an adjustable roller lever Limit Switch engineered for dependable position sensing in industrial automation systems. Its DPDT contact form allows accurate and simultaneous switching of control circuits, supporting precise machine sequencing and interlocking functions.
In industrial applications, the Omron WLCA12-TH is commonly used in conveyor systems, material handling equipment, packaging machinery, and machine tools. The R25 to 89 mm adjustable roller lever enables smooth actuation from rotating cams or moving components, reducing mechanical wear while maintaining consistent switching accuracy.
Designed for long-term operational reliability, the switch delivers high mechanical endurance and stable electrical characteristics throughout continuous operation. With its IP67-rated enclosure, wide operating temperature range, and robust internal construction, the Omron WLCA12-TH supports reliable performance in harsh industrial environments where accurate limit detection is critical.