Omron D4F-120-5D Limit Switch
Omron D4F-120-5D provides the same metal-lever and resin-roller actuator format with 1NC/1NO slow-action contacts, but uses a 5 m cable and vertical orientation. Its longer cable is the main practical difference from the 1 m D4F-120-1D version. IP67 protection, 100 MΩ minimum insulation resistance, a minimum 2 × 2 mm contact gap, and operation from 1 mm/s to 0.5 m/s are specified. The D4F-120-5D belongs to the D4F Series within the prewired roller lever switch range from Omron limit switch products.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-120-5D |
Omron D4F-120-5D 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. |
| Cable Length | 5 m |
| Pull Outing Direction Of Cable | Vertical |
| Contact Gap | 2 × 2 mm min. |
| Actuator | Roller lever (Metal lever, resin 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-120-5D Limit Switch combines a metal lever and resin roller with slow-action 1NC/1NO switching, but distinguishes itself through a 5 m cable. The actuator uses vertical orientation and supports operating speeds from 1 mm/s to 0.5 m/s. The source specifies up to 120 mechanical operations and 30 electrical operations per minute, together with a minimum contact gap of 2 × 2 mm. IP67 protection and 100 MΩ minimum insulation resistance are listed, while operating temperature extends from -30 to 70°C with relative humidity up to 95%.
The 5 m cable corresponds to a maximum contact resistance of 700 mΩ in the supplied specification. Malfunction vibration resistance is 10 to 55 Hz at 0.75 mm single amplitude, and shock resistance is rated at 1,000 m/s² minimum for destruction and 300 m/s² minimum for malfunction. Cable reach is therefore the principal reason to choose this version over another vertical D4F-120 model. For the same roller-lever actuator, contact form, and vertical orientation with a shorter 1 m connection, see the D4F-120-1D model.
