Omron VB-5211 Limit Switch
Omron VB-5211 is a multiple limit switch with five roller plungers for monitoring several mechanical positions from one switch assembly. Each actuator uses a 6.8 mm roller for smooth and repeatable contact, while flange mounting provides a stable installation base and two side cable entries support practical wiring. The switch operates from 0.1 mm/s to 0.5 m/s and provides 5 million minimum mechanical operations with IP67 protection. The VB-5211 belongs to the VB Series within the five-plunger multiple limit switch range from Omron machine control products for multi-stage travel, sequence, and position detection where several coordinated sensing points are needed.
| Brand | Omron |
| Product | Limit Switch |
| Model Number | VB-5211 |
Omron VB-5211 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Number Of Plungers | 5 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-5211 Limit Switch uses five roller plungers, each with a 6.8 mm roller, for multi-stage position detection from one switch assembly. The five-plunger configuration allows several travel points to be monitored without separate switch bodies, while flange mounting provides a stable installation base. Two side cable entries support practical wiring access. Operating speed ranges from 0.1 mm/s to 0.5 m/s, with up to 120 mechanical and 30 electrical operations per minute. IP67 protection supports use around dust, water, or oil, while the switch operates from -10 to 80°C with 35% to 95% relative humidity.
Mechanical durability is specified at 5 million operations minimum, while electrical durability reaches 300,000 operations minimum at 10 A, 250 VAC resistive load. Initial contact resistance is 15 mΩ maximum, and insulation resistance is 100 MΩ minimum at 500 VDC. The VB-5211 withstands destructive shock of at least 1,000 m/s² and malfunction shock of at least 200 m/s². Malfunction vibration resistance covers 10 to 55 Hz at 1.5 mm double amplitude. These characteristics suit equipment requiring several sequential position signals from one compact assembly. For a related VB model with six roller plungers, flange mounting, and two side cable entries, see the VB-6211 model.
