Omron D4N-2220 Limit Switch
Omron D4N-2220 pairs a resin lever and resin roller with 2NC snap-action contacts. The G1/2 single-conduit configuration supports connection to the switch, while the actuator accepts movement from 1 to 500 mm/s. IP67 protection, 100 MΩ minimum insulation resistance, a 300 V rated insulation voltage, and 25 mΩ maximum contact resistance are specified. The D4N-2220 belongs to the D4N Series within the 2NC roller lever limit switch range from Omron switching components. The resin lever and roller construction differentiate it from metal-actuator 2NC versions.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-2220 |
Omron D4N-2220 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. |
| Actuator | Roller lever (resin lever, resin roller) |
| Vibration Resistance | Malfunction 10 to 55 Hz, 0.75 mm single amplitude |
| Operating Mechanism | Snap-action |
| Conduit Size Conduit Openings | 1-conduit,G1/2 |
| Operating Speed | 1 to 500 mm/s |
| Operating Frequency | 30 operations/minute max. |
| Contact Resistance | 25 mΩ max. |
| Rated Insulation Voltage Ui | 300 V |
| Rated Frequency | 50/60 Hz |
| Ambient Operating Temperature | −30 to 70°C (with no icing) |
| Ambient Operating Humidity | 95% max |
| Weight | Approx. 82 g (D4N-1120); Approx. 99 g (D4N-6120) |
The Omron D4N-2220 Limit Switch uses a resin lever and resin roller with 2NC snap-action contacts. The actuator operates over a speed range from 1 to 500 mm/s, while maximum switching frequency is 30 operations per minute. Wiring is handled through a G1/2 single-conduit entry. The electrical specifications include 25 mΩ maximum contact resistance, 100 MΩ minimum insulation resistance, and a rated insulation voltage of 300 V at 50/60 Hz. IP67 protection is specified, with operation from -30 to 70°C and relative humidity up to 95%.
Malfunction vibration resistance covers 10 to 55 Hz at 0.75 mm single amplitude. Shock resistance is rated at least 1,000 m/s² for destruction and 300 m/s² for malfunction. The resin lever and resin roller distinguish this version mechanically from the D4N-2225, even though both use 2NC snap-action contacts and the same stated electrical and environmental values. For an all-metal roller-lever alternative in this contact configuration, see the D4N-2225 model.
