Omron D4F-320-5D Limit Switch
Omron D4F-320-5D is a slow-action roller-lever limit switch with a metal lever, resin roller, and 2NC/2NO contact form. It has a 5 m cable in vertical orientation and a 2 × 2 mm minimum contact gap. Operating speed ranges from 1 mm/s to 0.5 m/s, while IP67 protection is specified. The D4F-320-5D belongs to the D4F Series within the roller lever limit switch range from Omron. The metal lever, resin roller, 2NC/2NO contacts, 5 m cable, and vertical orientation are the main specifications that distinguish this version from roller-plunger D4F models and shorter-cable roller-lever versions in the same D4F family.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-320-5D |
Omron D4F-320-5D Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Contact Form | 2NC/2NO |
| 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-320-5D Limit Switch operates from 1 mm/s to 0.5 m/s. Mechanical operation frequency is 120 operations per minute, while electrical operation frequency is 30 operations per minute. With the 5 m cable, maximum contact resistance is 700 mΩ. Insulation resistance is 100 MΩ minimum, rated insulation voltage is 250 V, and frequency is 50/60 Hz. These supporting values complement the metal lever, resin roller, 2NC/2NO slow-action contact form, vertical orientation, 5 m cable, and 2 × 2 mm minimum contact gap highlighted in the introduction.
The operating temperature range is -30 to 70°C with no icing, while humidity is 95% maximum. Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. Destructive shock resistance is 1,000 m/s² minimum and malfunction shock resistance is 300 m/s² minimum. IP67 protection is also specified. The 5 m cable and corresponding 700 mΩ contact-resistance limit are useful model-level distinctions, while the roller-lever materials separate D4F-320-5D from roller-plunger D4F versions. Within the D4F-320 group, the 5 m vertical cable, 700 mΩ contact resistance, metal lever, resin roller, and 2NC/2NO slow-action contacts form the clearest exact-model specification set for comparison. For a related 2NC/2NO roller-lever model with a 3 m cable, see D4F-320-3D.
