Omron D4N-2C25 Limit Switch
Omron D4N-2C25 uses an all-metal roller-lever actuator together with 2NC/1NO slow-action contacts. Both the lever and roller are metal, distinguishing this version from the resin-actuator D4N models while retaining the same three-contact arrangement. Its G1/2 single-conduit connection supports wiring, and actuator speed ranges from 1 to 500 mm/s. IP67 protection, 25 mΩ maximum contact resistance, and 100 MΩ minimum insulation resistance are specified. The D4N-2C25 belongs to the D4N Series within the metal roller lever limit switch range from Omron control components.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-2C25 |
Omron D4N-2C25 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 lever (metal lever, metal roller) |
| 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-2C25 Limit Switch uses a metal lever and metal roller with a 2NC/1NO slow-action contact configuration. The actuator construction differentiates this model from resin-lever versions even when the electrical contact arrangement is the same. Wiring enters through a G1/2 single conduit, while target movement can range from 1 to 500 mm/s. Maximum operating frequency is specified at 30 operations per minute. Contact resistance is 25 mΩ maximum, insulation resistance is 100 MΩ minimum, and the rated insulation voltage is 300 V at 50/60 Hz. IP67 protection is listed for the switch.
Operating temperature ranges from -30 to 70°C, with relative humidity up to 95%. Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. The source specifies destructive shock resistance of at least 1,000 m/s² and malfunction shock resistance of at least 300 m/s². Since contact form, mechanism, conduit and environmental ratings closely match the resin version, actuator material becomes the primary comparison point. For the corresponding 2NC/1NO model with a resin lever and resin roller, see the D4N-2C20 model.
