Omron D4N-4132 Limit Switch
Omron D4N-4132 is a snap-action limit switch with a roller plunger actuator and 1NC/1NO contact form. It uses a 1-conduit, M20 configuration and operates from 1 to 500 mm/s. Operation frequency is 30 operations/minute maximum, with IP67 protection, 25 mΩ maximum contact resistance, and 300 V rated insulation voltage. The D4N-4132 M20 Roller Plunger Switch belongs to the D4N Series within the Omron M20 Plunger Limit Switch Range from Omron Safety Switch Products. Insulation resistance is 100 MΩ minimum and frequency is 50/60 Hz. Its M20 conduit and roller-plunger actuator distinguish the configuration.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-4132 |
Omron D4N-4132 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 | Roller 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-4132 Limit Switch uses a roller plunger actuator with 1NC/1NO contacts and snap-action operation. The connection is specified as 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 specified. Operating temperature ranges from -30 to 70°C with no icing, while humidity is 95% maximum. These specifications provide the core supporting profile for the roller-plunger and M20 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 exact model identity is best represented by roller plunger, 1NC/1NO contacts, snap-action mechanism, M20 conduit, operating-speed range, 25 mΩ contact resistance, and 300 V insulation rating. The source does not provide a normal load rating, contact gap, roller dimensions, or durability value, so those details are not inferred. This keeps D4N-4132 distinct through documented actuator and connection fields rather than unsupported specifications. For a related G1/2 roller-plunger model with the same contact form and snap-action mechanism, see D4N-2132.


