Omron D4F-320-1D Limit Switch
Omron D4F-320-1D is a roller lever D4F switch with a metal lever, resin roller, and 2NC/2NO slow-action contacts. This version uses vertical actuator orientation and a 1 m cable. It supports operating speeds from 1 mm/s to 0.5 m/s and provides IP67 protection, 100 MΩ minimum insulation resistance, and a 2 × 2 mm minimum contact gap. The D4F-320-1D belongs to the D4F Series within the 2NC/2NO roller lever switch range from Omron control components. It combines lever actuation with a short 1 m connection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-320-1D |
Omron D4F-320-1D 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 | 1 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-320-1D Limit Switch uses a metal lever with a resin roller and a 2NC/2NO slow-action contact configuration. The roller lever gives a sweeping actuator path while four contacts provide two normally closed and two normally open circuits. This version is vertically oriented and supplied with a 1 m cable. Its operating-speed range is 1 mm/s to 0.5 m/s, with up to 120 mechanical and 30 electrical operations per minute. IP67 protection, 100 MΩ minimum insulation resistance, and a 2 × 2 mm minimum contact gap are specified.
The 1 m cable corresponds to a maximum contact resistance of 300 mΩ. The switch operates from -30 to 70°C with relative humidity up to 95%. Malfunction vibration resistance is 10 to 55 Hz at 0.75 mm single amplitude, while shock resistance is at least 1,000 m/s² for destruction and 300 m/s² for malfunction. The important identifiers are roller-lever actuation, 2NC/2NO contacts, vertical orientation, and a short cable. For the same contact and actuator arrangement with horizontal orientation, see the D4F-320-1R model.
