The VIB1/R-12 series indoor high voltage vacuum circuit breaker features a lateral spring operating mechanism and vacuum arc extinguishing technology. This fixed-type breaker is designed for reliable performance in power distribution systems.

With rated voltage of 12kV and current options of 630A, 1250A or 1600A, this breaker operates at 50Hz frequency. The lateral spring charging mechanism ensures quick and reliable operation, available in both manual and electric operation modes.

The breaker provides multiple protection functions including conventional circuit breaking, circuit-breaker failure protection, overcurrent protection and overvoltage protection (OVP). Its vacuum arc-extinguishing medium ensures safe operation and long service life.
Suitable for installation in environments with ambient temperature range of -15°C to +40°C and altitude up to 1000m above sea level. The breaker meets GB1984-2003, JB3855-1996 and IEC 62271-100:2001 standards.

I was thoroughly impressed with the overall experience of this bulk order. The logistics were handled exceptionally well; the shipment arrived ahead of schedule and was packaged with great care to prevent any damage during transit. Each unit was securely crated, and the documentation was clear and complete. Regarding quality, the circuit breakers appear to be manufactured to a very high standard. The construction is robust, and the components look precise and durable, exactly as specified for industrial high-voltage applications. The service provided by the supplier was also outstanding. Their communication was prompt and professional from the initial inquiry through to the final delivery confirmation. They were responsive to all my questions and provided necessary support efficiently. This combination of reliable logistics, apparent top-tier quality, and excellent customer service made for a very smooth and satisfactory procurement process. I would certainly consider them for future industrial electrical component needs.
Lately, I received my bulk order of the VIB1/R-12 Series vacuum circuit breakers, and I must commend the overall experience. The logistics were handled exceptionally well; the shipment arrived ahead of schedule, securely packaged with no signs of damage during transit. This prompt delivery minimized downtime for our industrial operations, which was a huge relief. In terms of quality, the circuit breakers appear robust and well-manufactured, meeting the high standards we expect for industrial high-voltage applications. The service provided was outstanding as well; the support team was responsive and helpful in addressing my queries, ensuring a smooth transaction from start to finish. Overall, a very satisfactory purchase that I would recommend to others in need of reliable electrical components.