Omron VB-4211 Limit Switch
Omron VB-4211 is a multiple limit switch with four roller plungers for monitoring several machine positions from one enclosed assembly. Each actuator uses a 6.8 mm roller for smooth mechanical contact, helping simplify multi-point position sensing on automated equipment. Flange mounting supports stable installation, while side wiring access helps with cable routing in restricted machine layouts. The switch handles industrial control loads and provides IP67 protection for dusty or wet environments. The VB-4211 belongs to the VB Series within the multi-position industrial limit switch range from Omron machine automation products for coordinated machine travel and position detection.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | VB-4211 |
Omron VB-4211 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Number Of Plungers | 4 plungers |
| Shape Of Box | With flange |
| Conduit | Two on the side |
| 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-4211 Limit Switch is a multiple limit switch with four roller plungers for monitoring several mechanical positions from one enclosed assembly. Each plunger uses a 6.8 mm roller, helping moving cams or machine parts actuate the switch smoothly during repeated operation. The four-plunger arrangement is useful on automated equipment that needs multiple position signals without installing several separate switch bodies. Flange mounting supports secure machine installation, while two side wiring locations help organize connections where space around the unit is limited. Operating speed ranges from 0.1 mm/s to 0.5 m/s, and the switch is rated for 10 A at 250 VAC resistive load. IP67 protection supports factory environments.
The VB-4211 provides at least 5 million mechanical operations and 300,000 electrical operations at 10 A, 250 VAC resistive load. Initial contact resistance is 15 mΩ maximum, while insulation resistance is 100 MΩ minimum at 500 VDC. Operating temperature ranges from -10 to 80°C with 35 to 95% relative humidity. The switch withstands destructive shock of at least 1,000 m/s² and malfunction shock of at least 200 m/s², with vibration resistance from 10 to 55 Hz at 1.5 mm double amplitude. These specifications support dependable multi-position feedback in transfer systems and complex machine sequences. For a more compact VB arrangement using two roller plungers, see the VB-2221 model.
