Omron D4A-3115N Limit Switch
The Omron D4A-3115N Limit Switch offers Cat whisker actuator, Snap action operation mechanism, SPST-NO/SPST-NC contact form. Manufactured by Omron under the Omron Limit Switch category, this model belongs to the D4A Series.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4A-3115N |
Omron D4A-3115N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Contact Configuration | 2-circuit double break type |
| Contact Form | SPST-NO/SPST-NC |
| Load | General load |
| Inrush Current | NC: 30 A max. NO: 20 A max. |
| Conduit | G1/2 |
| Ambient Temperature | Operating: -20 to 100 ℃ |
| Ambient Humidity | 35 to 95 % (with no icing) |
| Shock Resistance | Destruction: 1,000 m/s2 max. |
| Degree Of Protection | IP67 NEMA Type1, 2, 3, 4, 4X, 5, 6P, 12, 13 |
| Durability | Electrical: 1,000,000 operations min. (10 A at 125 VAC ) |
| Insulation Resistance | Between each terminal of the same polarities: 100 MΩ min. Between live-metallic part and ground: 100 MΩ min. Between each terminal and non-live-metallic part: 100 MΩ min. at 500 VDC |
| Dielectric Strength | Between each terminal of the same polarities: 1,000 VAC 50/60 Hz 1 min Between live-metallic part and ground: 2,200 VAC 50/60 Hz 1 min Between each terminal and non-live-metallic part: 2,200 VAC 50/60 Hz 1 min |
| Actuator | Cat whisker |
| Operating Mechanism | Snap action |
| Contact Resistance | 25 mΩ max. |
| Rated Frequency | 50/60 Hz |
The Omron D4A-3115N is a rugged general-purpose limit switch equipped with a flexible rod actuator (cat whisker type) and a snap-action mechanism for reliable and quick switching. It features a 2-circuit SPDT double-break contact configuration, making it suitable for a wide range of industrial position-detection applications.
This model supports G1/2 conduit entry and offers high mechanical durability with a minimum of 1 million electrical operations at 10 A (125 VAC). With no built-in indicator, it is optimized for robust sensing environments where visibility is not required. The switch operates reliably from –20°C to 100°C and maintains performance in high-vibration or shock-prone areas, thanks to its strong internal construction.
Built to withstand harsh conditions, the D4A-3115N is rated IP67 and NEMA Type 1 to 13, ensuring water, oil, and dust resistance. It’s ideal for machinery, conveyors, and automated systems requiring consistent positional feedback.
