Omron WLD28-N Limit Switch
The Omron WLD28-N Limit Switch offers Sealed top-roller plunger actuator, Screw terminals
(Conduit size: G½) shape, Without operation indicator. Manufactured by Omron under the Omron Limit Switch category, this model belongs to the WL Series.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLD28-N |
Omron WLD28-N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Terminal Shape | Screw terminals (Conduit size: G½) |
| Pretravel Pt | 1.7 mm max. |
| Indicator | Without operation indicator |
| Ambient Temperature | -10 to +80°C (with no icing) |
| Ambient Humidity | 35 to 95%RH |
| Shock Resistance | Destruction: 1,000 m/s2 min. Malfunction: 300 m/s2 min. |
| Degree Of Protection | IP67 |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Actuator | Sealed top-roller plunger |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Contact Resistance | 25 mΩ max. (initial value for the built-in switch) |
| Rated Frequency | 50/60 Hz |
The Omron WLD28-N is a compact and reliable two-circuit limit switch featuring a sealed top-roller plunger actuator. Designed for accurate mechanical detection in industrial environments, it supports mounting with screw terminals and a G½ conduit interface. The unit allows a pretravel of 1.7 mm max and operates effectively in a temperature range of –10°C to 80°C and humidity up to 95% RH without condensation.
This switch operates without an indicator and is rated for 50/60 Hz frequency environments. It offers strong insulation performance with 100 MΩ minimum resistance and contact resistance of 25 mΩ max. It withstands vibration from 10 to 55 Hz (1.5 mm amplitude) and shock up to 1,000 m/s² (destruction rating). Suitable for mechanical actuation in positioning, safety, or process control systems, the WLD28-N combines long-term reliability with an industrial-grade sealed body featuring IP67 protection.
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