Omron D4N-2B32 Limit Switch
Omron D4N-2B32 is a slow-action roller plunger limit switch with 2NC contacts and a G1/2 single-conduit connection. The actuator supports movement from 1 to 500 mm/s, while switching frequency is limited to 30 operations per minute. IP67 protection, 25 mΩ maximum contact resistance, 100 MΩ minimum insulation resistance, and a 300 V rated insulation voltage are specified. The D4N-2B32 belongs to the D4N Series within the 2NC roller plunger limit switch range from Omron switching products. Its slow-action mechanism and G1/2 conduit are key configuration details.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-2B32 |
Omron D4N-2B32 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Contact Form | 2NC |
| 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,G1/2 |
| 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-2B32 Limit Switch uses a roller plunger with 2NC contacts operated through a slow-action mechanism. Its G1/2 single-conduit format distinguishes this version from M20 plunger models in the same D4N family. The actuator supports target speeds from 1 to 500 mm/s and the switch is specified for a maximum of 30 operations per minute. Contact resistance is 25 mΩ maximum, insulation resistance is 100 MΩ minimum, and rated insulation voltage is 300 V at 50/60 Hz. IP67 protection is listed, together with operation from -30 to 70°C and relative humidity up to 95%.
Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. Shock resistance is specified at 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. The most useful model identifiers are therefore roller-plunger actuation, slow action, two normally closed contacts, and the G1/2 conduit connection. This provides a clear comparison with D4N roller-plunger models that retain 2NC contacts but change the conduit specification. For an M20 single-conduit version using the same 2NC slow-action concept, see the D4N-4B32 model.
