Omron D4N-1A32 Limit Switch
Omron D4N-1A32 is a slow-action roller plunger limit switch with 1NC/1NO contacts and a single-conduit configuration. The roller plunger provides the mechanical contact point, while operating speed is specified from 1 to 500 mm/s. IP67 protection, 100 MΩ minimum insulation resistance, 25 mΩ maximum contact resistance, and a 300 V rated insulation voltage are listed. The D4N-1A32 forms part of the D4N Series within the roller plunger limit switch range from Omron control components. Its 1NC/1NO slow-action switching separates it from 2NC roller-plunger versions.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-1A32 |
Omron D4N-1A32 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Contact Form | 1NC/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 |
| 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-1A32 Limit Switch combines a roller plunger with a slow-action 1NC/1NO contact configuration. This gives the model a direct rolling actuator while retaining both normally closed and normally open switching paths. The single-conduit version supports operating speeds from 1 to 500 mm/s, with up to 30 operations per minute. IP67 protection and 100 MΩ minimum insulation resistance are specified. Contact resistance is limited to 25 mΩ maximum, and rated insulation voltage is 300 V at 50/60 Hz. Operating temperature ranges from -30 to 70°C.
Relative humidity is specified at 95% maximum. The source lists malfunction vibration resistance from 10 to 55 Hz at 0.75 mm single amplitude. Destructive shock resistance is at least 1,000 m/s² and malfunction shock resistance at least 300 m/s². The key comparison point is contact action: this version uses 1NC/1NO slow action while retaining the roller-plunger actuator. For a D4N roller-plunger model using 2NC snap-action contacts, see the D4N-1232 model.
