Omron WLD28 Sealed Top Roller Plunger Limit Switch
The Omron WLD28 is a sealed top-roller plunger limit switch designed for accurate linear position detection in demanding industrial automation environments. Built with a plunger actuator featuring a top-mounted roller, this model ensures smooth vertical actuation and stable switching during repetitive machine operations. The switch incorporates a standard built-in switch mechanism with a durable contact structure, supporting reliable signal transmission in control circuits. Its sealed construction enhances resistance against dust and moisture, making it suitable for harsh industrial conditions. Manufactured by Omron, the WLD28 is part of the Omron Limit Switch, recognized for mechanical durability and consistent electrical performance.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLD28 |
Omron WLD28 Plunger Actuated 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 (GĀ½ conduit) |
| Pretravel (PT) | 1.7 mm max |
| Degree of protection | IP67 |
The Omron WLD28 is widely recognized as an Omron sealed top-roller plunger limit switch engineered for dependable mechanical sensing in industrial automation systems. Its plunger actuator design enables precise detection of linear motion, ensuring consistent actuation points across repeated operating cycles.
In industrial applications, the Omron WLD28 is commonly used in machine tools, press machines, automated assembly lines, and material handling equipment where vertical stroke detection is required. The top-roller plunger reduces friction during contact with moving machine parts, supporting smooth operation and reduced mechanical wear.
Designed for long-term operational reliability, the switch features a sealed housing and robust internal contacts that support continuous operation in demanding environments. Its durable construction and stable switching characteristics make the Omron WLD28 a reliable choice for industrial limit detection applications requiring accuracy and longevity.