Omron D4N-4C32 Limit Switch
Omron D4N-4C32 is a roller plunger model with 2NC/1NO slow-action contacts, providing three switching paths from one actuator. An M20 single-conduit entry is used for wiring, while operating speed extends from 1 to 500 mm/s. IP67 protection, 25 mΩ maximum contact resistance, 100 MΩ minimum insulation resistance, and a 300 V rated insulation voltage are listed. The D4N-4C32 belongs to the D4N Series within the three-contact roller plunger switch range from Omron control components. Its 2NC/1NO contact arrangement is the primary electrical selection point.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-4C32 |
Omron D4N-4C32 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Contact Form | 2NC/1NO |
| Shock Resistance | Destruction 1,000 m/s2 min. Malfunction 300 m/s2 min. |
| Degree Of Protection | IP67 |
| Insulation Resistance | 100 MΩ min. |
| Actuator | Roller plunger |
| Vibration Resistance | Malfunction 10 to 55 Hz, 0.75 mm single amplitude |
| Operating Mechanism | Slow-action |
| Conduit Size Conduit Openings | 1-conduit,M20 |
| Operating Speed | 1 to 500 mm/s |
| Operating Frequency | 30 operations/minute max. |
| Contact Resistance | 25 mΩ max. |
| Rated Insulation Voltage Ui | 300 V |
| Rated Frequency | 50/60 Hz |
| Ambient Operating Temperature | −30 to 70°C (with no icing) |
| Ambient Operating Humidity | 95% max |
| Weight | Approx. 82 g (D4N-1120); Approx. 99 g (D4N-6120) |
The Omron D4N-4C32 Limit Switch provides a roller plunger actuator with 2NC/1NO slow-action contacts, combining three electrical paths in an M20 single-conduit housing. The actuator works with target speeds from 1 to 500 mm/s and the source specifies no more than 30 operations per minute. Contact resistance is 25 mΩ maximum, while insulation resistance is 100 MΩ minimum. The switch has a rated insulation voltage of 300 V at 50/60 Hz and IP67 protection. Operating temperature extends from -30 to 70°C with humidity up to 95%.
Malfunction vibration resistance is specified at 10 to 55 Hz with 0.75 mm single amplitude. Destructive shock resistance reaches at least 1,000 m/s² and malfunction shock resistance at least 300 m/s². Three-contact slow-action switching is the model's main electrical distinction within the M20 roller-plunger group. The conduit format then separates it from another D4N model using the same actuator and 2NC/1NO arrangement but two cable entries. For that dual-entry alternative, see the D4N-6C32 model.


