UniWave Electric





As medium-voltage vacuum contactor technology and processes continue to evolve and innovate, ABB launched the new-generation ConVac vacuum contactors in 2020. Designed to deliver higher-quality solutions to customers, they have earned wide acclaim over the past six years for their advanced technology, excellent performance, and reliable quality.
| Product Category | Products Entering Inactive Phase | Corresponding Replacement Products |
|---|---|---|
| Vacuum Contactor | GB VSC (7.2kV, 12kV) | ConVac (7.2kV, 12kV) |
For the draw-out type, the ConVac vacuum contactor is fully dimensionally compatible with the VSC. The only difference is that the front panel of the ConVac protrudes slightly more than that of the VSC (by approximately 10-15mm), as shown in the figure below.

This may lead to interference between the middle cabinet door and the ConVac panel—resulting in the door failing to close—if the internal clearance of the original cabinet door is insufficient after replacing with ConVac. Therefore, it is necessary to verify that the clearance between the original VSC contactor (in the test position) and the cabinet door is more than 15mm when the door is closed; if so, the replacement with the new contactor will be completely feasible. In addition, customization is required for the secondary circuit based on the specific model and configuration of the contactor, to accommodate the existing differences.


