Omron D4A-3101N Limit Switch
Omron D4A-3101N Limit Switch is a general-purpose rotary-action limit switch with snap-action operation and an SPST-NO/SPST-NC contact form. It is listed for general load use, with NC current specified as 30 A max. and NO current as 20 A max. Contact resistance is 25 mΩ max., while electrical durability is 200,000 operations min. at 1 A, 125 VAC and mechanical durability is 10 million operations min. The model carries IP67 and NEMA Type 1, 2, 3, 4, 4X, 5, 6P, 12 and 13 ratings. The D4A-3101N belongs to the D4A Series within the Omron Limit Switch range from Omron.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4A-3101N |
Omron D4A-3101N Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Shape Structure | General-purpose Limit switches |
| Ctuator | Rotary action |
| Contact Form | SPST-NO/SPST-NC |
| Load | General load |
| Inrush Current | NC: 30 A max. NO: 20 A max. |
| Ambient Temperature | Operating: -40 to 100 ℃ |
| Ambient Humidity | 35 to 95% RH |
| Shock Resistance | Destruction: 1,000 m/s 2 max. Malfunction: 600 m/s 2 max. |
| Degree Of Protection | IP67 NEMA Type1, 2, 3, 4, 4X, 5, 6P, 12, 13 |
| Contact Resistance Initial Value | 25 mΩ max. |
| Durability | Electrical: 200,000 operations min. (1 A at 125 VAC) Mechanical: 10 million operations min. |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5 mm double amplitude |
| Operating Mechanism | Snap action |
The Omron D4A-3101N Limit Switch is a general-purpose limit switch with rotary action, snap-action operation, and an SPST-NO/SPST-NC contact form. It is listed for general load use. NC current is specified at 30 A max. and NO current at 20 A max. Contact resistance is 25 mΩ max. Electrical durability is 200,000 operations min. at 1 A, 125 VAC, while mechanical durability is 10 million operations min. The combination of rotary action, snap-action switching, SPST-NO/SPST-NC contacts, general-load classification, and the listed current values provides the main electrical and mechanical identifiers for the D4A-3101N configuration. The general-load classification and snap-action mechanism sit alongside separate enclosure, durability, vibration, shock, temperature, and humidity specifications for the same model.
Environmental data for the D4A-3101N includes an operating temperature range of -40 to 100°C and 35 to 95% RH. Shock specifications are 1,000 m/s² max. for destruction and 600 m/s² max. for malfunction. Malfunction vibration is listed at 10 to 55 Hz with 1.5 mm double amplitude. The enclosure is specified as IP67 and also carries NEMA Type 1, 2, 3, 4, 4X, 5, 6P, 12 and 13 ratings. In the same D4A Series, the D4A-4501N uses DPST-NO/DPST-NC contacts and has different listed durability values.
