Omron D4F-202-1R Limit Switch
Omron D4F-202-1R is a slow-action limit switch with a metal roller plunger and 2NC contact configuration. This horizontal-orientation version includes a 1 m cable, supports operating speeds from 1 mm/s to 0.5 m/s, and provides a minimum 2 × 2 mm contact gap. IP67 protection and 100 MΩ minimum insulation resistance are also specified. The D4F-202-1R is part of the D4F Series within the 2NC roller plunger limit switch range from Omron switching products. Its 2NC contact form is the primary difference from the 1NC/1NO D4F-102-1D.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-202-1R |
Omron D4F-202-1R 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. |
| Cable Length | 1 m |
| Pull Outing Direction Of Cable | Horizontal |
| Contact Gap | 2 × 2 mm min. |
| Actuator | Roller plunger (Metal roller) |
| Vibration Resistance | Malfunction 10 to 55 Hz, 0.75 mm single amplitude |
| Operating Mechanism | Slow-action |
| Operating Speed | 1 mm/s to 0.5 m/s |
| Operating Frequency | Mechanical 120 operations/minute; Electrical 30 operations/minute |
| Contact Resistance | 300 mΩ max. (with 1 m cable), 500 mΩ max. (with 3 m cable), 700 mΩ max. (with 5 m cable) |
| Rated Insulation Voltage Ui | 250 V |
| Rated Frequency | 50/60 Hz |
| Ambient Operating Temperature | −30 to 70°C (with no icing) |
| Ambient Operating Humidity | 95% max |
The Omron D4F-202-1R Limit Switch uses a metal roller plunger with a slow-action 2NC contact configuration. It is supplied with a 1 m cable and uses horizontal actuator orientation, distinguishing it both electrically and mechanically from the 1NC/1NO vertical D4F-102 model. Operating speed ranges from 1 mm/s to 0.5 m/s, with mechanical operation specified up to 120 operations per minute and electrical operation up to 30 operations per minute. A minimum 2 × 2 mm contact gap, IP67 protection, and 100 MΩ minimum insulation resistance are listed.
The operating temperature range is -30 to 70°C with relative humidity up to 95%. Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude, while shock resistance is specified at 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. Contact resistance with its 1 m cable is 300 mΩ maximum. The 2NC contact form is the model's strongest electrical distinction. For a metal roller-plunger D4F using 1NC/1NO contacts and vertical orientation, compare the D4F-102-1D model.
