Omron D4F-302-3D Limit Switch
Omron D4F-302-3D is a vertical roller-plunger limit switch using a metal roller and 2NC/2NO slow-action contacts. A 3 m cable places this model between the shorter 1 m and longer 5 m versions while retaining the same actuator and contact configuration. IP67 protection, a 2 × 2 mm minimum contact gap, and operation from 1 mm/s to 0.5 m/s are specified. The D4F-302-3D belongs to the D4F Series within the multi-contact roller plunger switch range from Omron limit switch products. Cable length is the main selection difference for this version.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4F-302-3D |
Omron D4F-302-3D 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 | 3 m |
| Pull Outing Direction Of Cable | Vertical |
| 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-302-3D Limit Switch keeps the metal roller plunger and 2NC/2NO contact structure of the D4F-302 family but uses a 3 m cable. Its actuator is vertically oriented, with slow-action operation across a speed range from 1 mm/s to 0.5 m/s. Mechanical switching frequency is specified at up to 120 operations per minute, with electrical switching at up to 30 operations per minute. A minimum 2 × 2 mm contact gap, IP67 protection, and 100 MΩ minimum insulation resistance are listed.
Maximum contact resistance for the 3 m cable is 500 mΩ. The switch withstands destructive shock of at least 1,000 m/s² and malfunction shock of at least 300 m/s². Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. Operating temperature extends from -30 to 70°C with humidity up to 95%. Since actuator type and contact form are shared with the 1D and 5D models, the 3 m lead is the most useful identifying difference. For the longer 5 m version, see the D4F-302-5D model.
