Omron D4N-1131 Limit Switch
Omron D4N-1131 is a snap-action limit switch with a plunger actuator and 1NC/1NO contact form. It uses a 1-conduit configuration and supports operating speeds from 1 to 500 mm/s. Operation frequency is 30 operations/minute maximum, while IP67 protection, 25 mΩ maximum contact resistance, and 300 V rated insulation voltage are listed. The D4N-1131 Snap-Action Plunger Switch belongs to the D4N Series within the Omron 1NC/1NO Plunger Switch Range from Omron Safety Switch Components. Frequency is 50/60 Hz and insulation resistance is 100 MΩ minimum. Its plunger, contact form, snap action, and connection define the version.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-1131 |
Omron D4N-1131 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 |
| 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-1131 Limit Switch uses a plunger actuator with 1NC/1NO contacts and a snap-action mechanism. The connection is specified as 1-conduit. 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 specified. Operating temperature ranges from -30 to 70°C with no icing, while humidity is 95% maximum. These specifications provide the main electrical and mechanical profile behind the plunger configuration.
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 strongest exact-model terms are plunger actuator, 1NC/1NO contact form, snap-action operation, single-conduit connection, 1 to 500 mm/s operating speed, 25 mΩ contact resistance, 300 V rated insulation voltage, and IP67 protection. The source does not provide a normal current rating, contact gap, plunger dimensions, or durability figure, so those values are not imported from other D4N models. For a related snap-action plunger model with an M20 conduit, see D4N-4131.
