The 12kV VS1 medium voltage vacuum circuit breaker provided by Mingde is a quality indoor circuit protection equipment that operates at a rated voltage of 12kV and a three-phase AC 50HZ current. Usually it is widely applied as power grid equipment and a controlling and protecting unit for power equipment of industrial and mining enterprises. The circuit breaker could be installed in switchgear in two styles, namely the fixed styles and withdrawable style. Additionally, this circuit breaker could be applicable to switchgear as wide as 650mm,800mm and 1000mm.

Features of 12kV Medium Voltage Vacuum Circuit Breaker
1. Examples from both overseas and domestic areas show that this medium voltage VCB could run for over a decade;
2. Of a laconic structure, this vacuum circuit breaker runs quite smoothly;
3. It almost needs no maintenance;
4. This vacuum switch is equipped with a perfect interlock which protects the operator and the equipment by effectively preventing miss operations;
5. Its main circuit and operation mechanism are made of composite insulating materials;
6. This electrical vacuum switchgear meets the Guobiao standard(GB), Electric Power Industry Standard(DL), IEC standard, DIN standards, as well as related standards of other developed industrial countries;
7. This medium voltage circuit breaker enjoys a favorable price ration and could be a best choice for you.

Multiple Application of 12kV Medium Voltage Vacuum Circuit Breaker

Integral Structure of the Operation Mechanism

The operation mechanism of this circuit protection device enjoys an integral structure. The spring operation mechanism is a mature unit credited for its laconic structure and reliable performance. The crate employs a frame structure that makes the layout of functional units very clear and brings convenience to maintenance.

Anti-misoperation Interlock
Our 12kV vacuum circuit breaker is equipped with perfect anti-misoperation interlocks which could effectively prevent miss operations and protect the operator and your electrical equipment. (see the figure )

1. closing interlocking bent plate;
2. closing bent plate;
3. interlocking bent plate;
4. pin bolts;
5. idler wheel;
6. lock plate.

Modular Circuit Board

All the circuit breakers we provide adopt modular designs and are manufactured independently. Compared with the conventional circuit breakers, our 12kV vacuum breaker is equipped with several additional small fuses which, cheap and easy to replace, could avoid the burnouts of coils and motors caused by short circuits, expanding the lifespan of the breaker. Besides, we could provide custom products to you according to your technological requirements.

Wide Application of 12kV Medium Voltage Vacuum Circuit Breaker

As a medium-voltage switch manufacturer, Mingde provides reliable circuit breakers to you. The vacuum circuit breaker made by our company enjoys a smaller size, reliable and secure performance, easy maintenance and has been used in a wide range of occasions. The 12kV circuit breakers we supplied to Beilun power plant in 2010 has been operating smoothly for 4 years, substantially promoting the stability and quality of the plant’s electric power supply. In May of 2012, Mingde supplied a batch of circuit breakers to a global leading gas company in Russia---Gazprom.

Technological Parameters of 12kV Medium Voltage Vacuum Circuit Breaker

Boundary Dimension Figure of 12kV Medium Voltage Vacuum Circuit Breaker

Please be noted: displayed above are the dimension figures of part of our products. If you would like to see, please contact us.