Omron VB-4121 Limit Switch
The Omron VB-4121 Limit Switch offers Bevel plunger actuator, 4 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-4121 |
Omron VB-4121 Limit Switch – Technical Specifications
| Specification | Value |
|---|---|
| Number Of Plungers | 4 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 | Bevel plunger |
| 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-4121 is a robust multiple limit switch featuring four bevel plungers for simultaneous or independent multi-point detection in automated systems. The switch offers flange mounting and side wiring for flexible installation in panels or machinery. With a contact rating of 10 A at 250 VAC (resistive load), it supports reliable switching for medium-load applications.
Designed for high durability, the VB-4121 provides a mechanical life of over 5 million operations and an electrical life of 300,000 cycles. It operates effectively at speeds from 0.1 mm/s to 0.5 m/s and endures industrial stress with vibration resistance up to 1.5 mm (10–55 Hz) and shock resistance of 1,000 m/s² (destruction). Its sealed housing meets IP67 protection, allowing use in dusty or wet environments. Operating temperature ranges from –10°C to 80°C. The VB-4121 is ideal for conveyors, stamping systems, and multi-position mechanical detection.
