Omron D4F-220-5D Limit Switch
Omron D4F-220-5D is a 2NC slow-action limit switch fitted with a metal lever and resin roller. The actuator is vertically oriented, while a 5 m cable provides extended wiring reach from the sensing point. Its operating-speed range is 1 mm/s to 0.5 m/s, with IP67 protection and a minimum 2 × 2 mm contact gap. The D4F-220-5D belongs to the D4F Series within the 2NC roller lever limit switch range from Omron control components. The 2NC contact form and roller-lever actuator define this model.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-220-5D |
Omron D4F-220-5D 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 | 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-220-5D Limit Switch uses a metal lever with a resin roller and two normally closed slow-action contacts. Unlike the D4F-202 models, this version transfers target movement through a lever rather than a roller plunger. It is vertically oriented and supplied with a 5 m cable. Operating speed is specified from 1 mm/s to 0.5 m/s, while operation frequency reaches 120 cycles per minute mechanically and 30 cycles per minute electrically. The switch provides IP67 protection, 100 MΩ minimum insulation resistance, and a 2 × 2 mm minimum contact gap.
The 5 m lead gives a maximum listed contact resistance of 700 mΩ. Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. Destructive shock resistance is at least 1,000 m/s² and malfunction shock resistance at least 300 m/s². The specified operating range is -30 to 70°C with humidity up to 95%. This model is best identified by its combination of 2NC contacts, roller-lever actuation, vertical orientation, and long cable. For a 5 m vertical roller-lever D4F using 1NC/1NO contacts instead, see the D4F-120-5D model.
