Omron D4N-212H Limit Switch
Omron D4N-212H is a snap-action limit switch with an adjustable roller lever, form lock, metal lever, and rubber roller. It uses 1NC/1NO contacts with a 1-conduit, G1/2 configuration. Operating speed is 1 to 500 mm/s, while operation frequency is 30 operations/minute maximum. IP67 protection and 300 V rated insulation voltage are specified. The D4N-212H Adjustable Form-Lock Lever belongs to the D4N Series within the Omron Adjustable Lever Switch Range from Omron Industrial Switching Products. Its form-lock actuator, metal lever, rubber roller, snap-action mechanism, and G1/2 conduit provide the main configuration details.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4N-212H |
Omron D4N-212H 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 | Adjustable roller lever, form lock (metal lever, rubber 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-212H Limit Switch uses an adjustable roller lever with form lock, a metal lever, and a rubber roller. It has 1NC/1NO contacts, snap-action operation, and a 1-conduit, G1/2 connection. 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, with operation from -30 to 70°C and 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 adjustable form-lock roller lever, metal lever, rubber roller, 1NC/1NO contacts, snap-action mechanism, and G1/2 conduit are the clearest product identifiers. The source does not list a normal current rating or actuator angle, so those details are not added. The resistance, voltage, frequency, temperature, vibration, and shock values remain supporting specifications rather than replacing the model-specific actuator and connection terms. For another D4N adjustable form-lock roller-lever model with the same contact form, see D4N-112H.
