Omron D4B-2116N Limit Switch
Omron D4B-2116N Limit Switch uses an adjustable roller lever actuator with a 1NC/1NO contact form and snap-action operation. The conduit specification is G1/2 (PF1/2), operating speed is 1 mm/s to 0.5 m/s, and operation frequency is listed as 120 operations/minute mechanical and 30 operations/minute electrical. Electrical specifications include 600 V rated insulation voltage, 50/60 Hz frequency, 25 mΩ max. contact resistance, and 100 MΩ min. insulation resistance. The model has IP67 protection, an operating temperature range of -40 to 80°C with no icing, and humidity of 95% max. Its malfunction vibration specification is 10 to 55 Hz at 0.75 mm single amplitude. The D4B-2116N belongs to the D4B-N Series within the Omron Limit Switch range from Omron.

| Brand | Omron |
| Product | Limit Switch |
| Model Number | D4B-2116N |
Omron D4B-2116N 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. |
| Contact Gap | 2 × 2 mm min. (slow-action) 2 × 0.5 mm min. (snap-action) |
| Actuator | Adjustable roller lever |
| Vibration Resistance | Malfunction 10 to 55 Hz, 0.75 mm single amplitude |
| Operating Mechanism | Snap-action |
| Conduit Size Conduit Openings | G1/2 (PF1/2) |
| Operating Speed | 1 mm/s to 0.5 m/s |
| Operating Frequency | Mechanical 120 operations/minute; Electrical 30 operations/minute |
| Contact Resistance | 25 mΩ max |
| Rated Insulation Voltage Ui | 600 V |
| Rated Frequency | 50/60 Hz |
| Ambient Operating Temperature | –40 to 80°C (with no icing) |
| Ambient Operating Humidity | 95% max |
| Weight | Approx. 250 g |
The Omron D4B-2116N Limit Switch uses an adjustable roller lever actuator with a 1NC/1NO contact form and snap-action operation. The conduit specification is G1/2 (PF1/2). Operating speed is listed as 1 mm/s to 0.5 m/s, and operation frequency is 120 operations/minute mechanical and 30 operations/minute electrical. Electrical specifications include 600 V rated insulation voltage, 50/60 Hz frequency, 25 mΩ max. contact resistance, and 100 MΩ min. insulation resistance. Together, these attributes define the actuator, contact form, action mechanism, operating speed, conduit, and electrical configuration. The adjustable roller lever is the stated actuator, while 1NC/1NO and snap-action describe the contact form and operation mechanism. The model's operating speed and operation frequency are listed separately from its electrical resistance and voltage values.
The D4B-2116N is rated IP67 and is specified for operation from -40 to 80°C with no icing and humidity of 95% max. Malfunction vibration is 10 to 55 Hz at 0.75 mm single amplitude. Shock values are 1,000 m/s² min. for destruction and 300 m/s² min. for malfunction. Within the D4B-N Series, the 1NC/1NO contact form, snap-action mechanism, adjustable roller lever, and G1/2 conduit are the principal identifiers of this model. For a D4B-N model with 2NC contacts, slow-action operation, and a stainless-steel roller lever, see the D4B-2A15N.


