Omron D4N-4131 Limit Switch
Omron D4N-4131 is a snap-action limit switch with a plunger actuator and 1NC/1NO contact form. Its conduit specification is 1-conduit, M20, while operating speed is listed from 1 to 500 mm/s. Operation frequency is 30 operations/minute maximum, with IP67 protection and 25 mΩ maximum contact resistance. Rated insulation voltage is 300 V at 50/60 Hz. Insulation resistance is 100 MΩ minimum. The D4N-4131 belongs to the D4N Series within the plunger limit switch range from Omron. The M20 conduit, plunger actuator, 1NC/1NO contacts, and snap-action mechanism are the main selection details, clearly separating this model from the G1/2 D4N-2131.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-4131 |
Omron D4N-4131 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 | Plunger |
| 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-4131 Limit Switch combines a plunger actuator with 1NC/1NO contacts and snap-action operation. It is specified with 1-conduit, M20. Operating speed ranges from 1 to 500 mm/s, and 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, together with an operating temperature range from -30 to 70°C with no icing and humidity up to 95%.
Malfunction vibration resistance is specified from 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 main product identifiers are the plunger actuator, 1NC/1NO contact form, snap-action mechanism, and M20 conduit specification. The resistance, voltage, speed, operation frequency, vibration, and shock values provide supporting technical context while keeping the description tied to the supplied model data. Because many D4N electrical limits are shared in the supplied rows, the M20 conduit and snap-action plunger combination provide the clearest exact-model distinction for D4N-4131. A closely related current D4N model uses the same plunger actuator, 1NC/1NO contacts, and snap-action operation with a G1/2 conduit instead of M20. See D4N-2131.
