Omron WLD2-TH Top Roller Plunger Limit Switch
The Omron WLD2-TH is a Top-roller Plunger Limit Switch designed for precise and repeatable position detection in industrial automation environments. This model uses a plunger actuator with an integrated top roller, enabling smooth vertical actuation from cams, slides, or machine components. Built with a standard built-in DPDT switch, it ensures stable electrical switching in control circuits requiring dependable mechanical feedback. The rugged construction and industrial sealing support operation in demanding conditions. Manufactured by Omron, the WLD2-TH is part of the Omron Limit Switch, known for mechanical durability and long service life in automation systems.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLD2-TH |
Omron WLD2-TH Top Roller Plunger Limit Switch ā Technical Overview
| Specification | Value |
|---|---|
| Actuator | Top-Roller Plunger |
| 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) | 1.7 mm max |
| Thermal Classification | Heat-Resistant type |
| Mechanical Life | 500,000 operations |
| Electrical Life | 10,000,000 operations |
| Degree of protection | IP67 |
The Omron WLD2-TH is widely identified as an Omron top-roller plunger limit switch engineered for accurate linear motion detection in industrial automation systems. Its plunger-based actuation mechanism delivers consistent switching performance while minimizing mechanical wear during repetitive operations.
In industrial applications, the Omron WLD2-TH is commonly installed in machine tools, automated assembly lines, material handling systems, and packaging machinery where controlled stroke detection is required. The top-roller plunger allows smooth engagement with moving parts, supporting reliable actuation even in high-cycle applications.
Designed for long-term operational reliability, the switch features a robust housing and stable internal contacts that support continuous use. With industrial-grade protection and proven mechanical endurance, the Omron WLD2-TH delivers dependable limit switching performance in harsh automation environments.