Omron D4F-202-5R Limit Switch
Omron D4F-202-5R uses a metal roller plunger with 2NC slow-action contacts and a 5 m cable, but this version is configured for horizontal actuator orientation. The switch supports mechanical movement 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-202-5R is part of the D4F Series within the horizontal roller plunger switch range from Omron switching products. Horizontal mounting is its primary difference from the 5D version.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-202-5R |
Omron D4F-202-5R 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 | 5 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-202-5R Limit Switch is a horizontally oriented roller-plunger model using a metal roller and 2NC slow-action contacts. A 5 m cable is supplied, while mechanical operating speed extends from 1 mm/s to 0.5 m/s. The switch supports up to 120 mechanical operations per minute and 30 electrical operations per minute. Its contact gap is specified at 2 × 2 mm minimum. IP67 enclosure protection and 100 MΩ minimum insulation resistance are also provided, together with an operating range of -30 to 70°C.
With the 5 m cable, maximum contact resistance is listed at 700 mΩ. The source specifies malfunction vibration resistance from 10 to 55 Hz at 0.75 mm single amplitude and shock resistance of at least 1,000 m/s² for destruction and 300 m/s² for malfunction. Humidity is permitted up to 95%, and the rated insulation voltage is 250 V at 50/60 Hz. Since its actuator and contact form match the 5D model, horizontal orientation becomes the key selection difference. For the vertically oriented equivalent, see the D4F-202-5D model.


