Omron WLSD3-LD-N Limit Switch
Omron WLSD3-LD-N uses a horizontal-ball plunger with screw terminals and a G½ conduit connection. Maximum pretravel is 2.8 mm, while an LED provides operation indication. The source specifies a 5 VDC, 1 mA resistive minimum load and an indicator range from 10 to 115 VAC/DC. IP67 protection, 100 MΩ minimum insulation resistance, and 25 mΩ maximum initial contact resistance are listed. The WLSD3-LD-N belongs to the WL Series within the horizontal ball plunger switch range from Omron switching products. The ball plunger and LED differentiate it from the WLSD-N.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | WLSD3-LD-N |
Omron WLSD3-LD-N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Terminal Shape | Screw terminals (Conduit size: G½) |
| Pretravel Pt | 2.8 mm max. |
| Minimum Applicable Load | 5 VDC 1 mA, resistive load, P level |
| Rated Voltage | 10 to 115 VAC/DC |
| Leakage Current Reference Value | Approx. 0.4 mA at 10 VAC/DC Approx. 0.5 mA at 115 VAC/DC |
| Indicator | LED (With 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 | Horizontal-ball 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 WLSD3-LD-N Limit Switch combines a horizontal-ball plunger with screw terminals and a G½ conduit entry. Pretravel is specified at 2.8 mm maximum. An LED operation indicator is included, and the minimum applicable resistive load is 5 VDC at 1 mA. The indicator is specified for 10 to 115 VAC/DC, with approximate current of 0.4 mA at 10 VAC/DC and 0.5 mA at 115 VAC/DC. IP67 protection, 100 MΩ minimum insulation resistance at 500 VDC, and 25 mΩ maximum initial contact resistance are listed.
The switch operates from -10 to 80°C with 35 to 95% relative humidity. Malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude, while shock resistance is listed at 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. The ball-plunger actuator and LED distinguish this configuration from the standard horizontal-plunger version. For the corresponding no-indicator horizontal plunger model, see the WLSD-N.
