Omron VB-2221 Limit Switch
The Omron VB-2221 Limit Switch offers Roller plunger (with a 6.8-dia. roller) actuator, 2 plungers, 0.1 mm to 0.5 m/s speed. Manufactured by Omron under the Omron Limit Switch category, this model belongs to the VB Series.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | VB-2221 |
Omron VB-2221 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Number Of Plungers | 2 plungers |
| Shape Of Box | With flange |
| Conduit | Four |
| Ambient Temperature | –10°C to 80°C (with no icing) |
| Ambient Humidity | 35% to 95% |
| Shock Resistance | Destruction: 1,000 m/s2 min. Malfunction: 200 m/s2 min. |
| Degree Of Protection | IP67 |
| Durability | Mechanical: 5,000,000 operations min. Electrical: 300,000 operations min. (10 A at 250 VAC, resistive load) |
| Insulation Resistance | 100 MΩ min. (at 500 VDC) |
| Actuator | Roller plunger (with a 6.8-dia. roller) |
| Vibration Resistance | Malfunction: 10 to 55 Hz, 1.5-mm double amplitude |
| Operating Speed | 0.1 mm to 0.5 m/s |
| Operating Frequency | Mechanical: 120 operations min. Electrical: 30 operations min. |
| Contact Resistance | 15 mΩ max. (initial value) |
| Rated Insulation Voltage Ui | 300 VAC |
| Rated Frequency | 50/60 Hz (AC) |
| Weight | Approx. 580 g |
The Omron VB-2221 is a rugged multiple limit switch designed for precision detection in demanding industrial systems. It includes two roller plungers with 6.8 mm diameter rollers and supports flange mounting for stable, fixed installation. The unit houses four independent built-in switches, enabling complex or redundant signal outputs from a single actuator movement.
With a rated load of 10 A at 250 VAC (resistive), the VB-2221 handles high electrical loads with ease. It supports operating speeds from 0.1 mm/s to 0.5 m/s and is built for long life: 5 million mechanical operations and 300,000 electrical operations minimum. The switch features low contact resistance (15 mΩ max.), high insulation (100 MΩ at 500 VDC), and is rated for ambient temperatures from –10°C to 80°C.
Its sealed construction meets IP67 standards, making the VB-2221 suitable for use in harsh, dusty, or wet environments where reliable detection and durability are essential.
