Omron D4N-4162 Limit Switch
Omron D4N-4162 is a snap-action limit switch with a one-way roller arm lever in horizontal configuration. It uses 1NC/1NO contacts and a 1-conduit, M20 connection. Operating speed ranges from 1 to 500 mm/s, while operation frequency is 30 operations/minute maximum. IP67 protection, 25 mΩ maximum contact resistance, and 300 V rated insulation voltage are listed. The D4N-4162 One-Way Roller Arm Lever belongs to the D4N Series within the Omron M20 Limit Switch Range from Omron Control Component Series. Its horizontal roller arm lever, contact form, snap action, and M20 conduit are the main identifiers.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-4162 |
Omron D4N-4162 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Contact Form | 1NC/1NO |
| Shock Resistance | Destruction 1,000 m/s2 min. Malfunction 300 m/s2 min. |
| Degree Of Protection | IP67 |
| Insulation Resistance | 100 MΩ min. |
| Actuator | One-way roller arm lever (horizontal) |
| Vibration Resistance | Malfunction 10 to 55 Hz, 0.75 mm single amplitude |
| Operating Mechanism | Snap-action |
| Conduit Size Conduit Openings | 1-conduit,M20 |
| 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-4162 Limit Switch uses a one-way roller arm lever in horizontal configuration with 1NC/1NO contacts and a snap-action mechanism. The connection is specified as 1-conduit, M20. Operating speed ranges from 1 to 500 mm/s, while operation frequency is 30 operations/minute maximum. Contact resistance is 25 mΩ maximum, insulation resistance is 100 MΩ minimum, and rated insulation voltage is 300 V at 50/60 Hz. IP67 protection is listed. Operating temperature ranges from -30 to 70°C with no icing, with humidity up to 95%.
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. The exact actuator wording, one-way roller arm lever (horizontal), is retained without adding an unlisted directional effect. Together with the 1NC/1NO contact form, snap-action mechanism, and M20 conduit, it provides the clearest model identity. The source does not provide a normal load rating or lever dimensions, so those values are omitted. Supporting specifications include 25 mΩ contact resistance, 300 V insulation rating, and IP67 protection. For another snap-action M20 D4N model with the same contact form but a plastic rod actuator, see D4N-4187.


