Omron D4E-1E20N Limit Switch
Omron D4E-1E20N uses a sealed 11 mm × 4.7 mm cross roller plunger made with stainless sintered alloy rollers and an SPDT contact arrangement. The sealed cross-roller format is suited to directional contact across the actuator rather than a straight axial push. IP67 protection, 15 mΩ maximum contact resistance, 100 MΩ minimum insulation resistance, and 10 million minimum mechanical operations are specified. The D4E-1E20N belongs to the D4E-N Series within the sealed cross roller limit switch range from Omron switching products for directional position detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4E-1E20N |
Omron D4E-1E20N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Ctuator | Sealed cross roller plunger 11 dia. x 4.7 Stainless sintered alloy rollers |
| Contact Form | SPDT |
| Frequency | 50/60 Hz |
| Load | General load |
| Inrush Current | NC: 10 A max. NO: 10 A max. |
| Ambient Temperature | Operating: -10 to 80 ℃ |
| Ambient Humidity | 35 to 95% RH |
| Shock Resistance | Destruction: 1000 m/s 2 Malfunction: 300 m/s 2 |
| Degree Of Protection | IP67 |
| Contact Resistance Initial Value | 15 mΩ max. |
| Durability | Electrical: 500,000 operations min. (5 A at 250 VAC) Mechanical: 10 million operations min. |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
The Omron D4E-1E20N Limit Switch is built around a sealed cross roller plunger measuring 11 mm × 4.7 mm and using stainless sintered alloy rollers. The cross orientation provides a directional rolling contact surface, while the sealed format differentiates it from the standard cross-roller versions in the D4E-N family. SPDT contacts are specified for general-load use at 50/60 Hz. The model operates from -10 to 80°C with relative humidity from 35 to 95%. IP67 protection is listed, together with 15 mΩ maximum contact resistance and 100 MΩ minimum insulation resistance at 500 VDC.
Mechanical durability reaches 10 million operations minimum, while electrical durability is listed at 500,000 operations minimum at 5 A, 250 VAC. Destructive shock resistance is specified at 1,000 m/s² and malfunction shock resistance at 300 m/s². The sealed cross roller is the defining mechanical feature, especially where the target crosses the actuator from a defined direction. The source does not state a separate normal rated-load value in this row, so none is inferred from the electrical durability test. For a related D4E-N cross roller model with a stated 1 A at 30 VDC rating, see the D4E-1B10N model.
