The 12kV VMD3 Side-Mounted Circuit Breaker Minde provides to you is a reliable medium voltage indoor vacuum circuit breaker independently designed and manufactured. As a quality medium voltage electrical switch, this 12kV circuit breaker is an updated and optimized product based on the traditional vacuum circuit breaker, characterized by its unique gear drive system, embedded poles as well as the extremely low-resistance vacuum interrupters. Besides, its operating mechanism is credited for the simple structure and reliable performance.

Product Features of 12kV Side-Mounted Circuit Breaker
1.This side-mounted safety switch is the third generation vacuum circuit breaker of our company, is carefully designed and manufactured equipment.
2. Of a side-mounted structure, this medium voltage circuit breaker needs a much smaller switchgear which not only save space but also reduce production cost.
3. As an optimized version of conventional CB, this 12kV circuit protection device employs the gear drive system instead of the chain drive. Therefore, it could operation in a far more stable way.
4. Thanks to its highly reliable and secure performance, this side-mounted CB, meeting all the requirements for an automatic reclosing lock, is highly qualified for a working occasion where repeated operations or breaking of short-cut circuit currents are required.
5. This side-mounted vacuum circuit breaker has passed the type tests of Guobiao standards (GB) and IEC standard, as well as the national appraisals.
6. The mechanical endurance of this electrical safety device could be up to 30,000 operations.
7. This series products have been exported to over 26 countries around the world.

Wide Applications of the 12kV Side-mounted Circuit Breaker

Owing to its advanced design and sound performance, this vacuum circuit controller could be applied in many different fields, such as the power distributions, hydropower plants, wind power plants, thermal power plants, oil and natural gas industries, offshore operations and urban infrastructure constructions. Moreover, it could run smoothly in such harsh conditions as the tropical deserts in Middle East, extremely cold zones in Siberia from Russia, and the plateau areas in western China.

Unique Gear Driven System

The operating mechanism of this side-mounted circuit breaker, an improved version of that of the conventional vacuum breaker, enjoys a simple and contract structure. It employs the standard parts which can be used universally. Furthermore, the unique gear driven system it is equipped with, helps the breaker run more smoothly and stably, and enjoy a longer mechanical life.

Spring Operation Mechanism

1. Each circuit control panel of our circuit breaker employs a modular design which ensures a reliable electrical connection and makes it easier for you to replace components inside the equipment.
2.80% components used in the side-mounted CB are plated with Ni-P alloy which significantly improves the parts' resistance to erosion and ensures a stable quality of them.
3. Both the tripping coil and closing coil are designed with an enclosed structure which protects them from moistures.
4.The trip unit and closing unit of this 12kV vacuum circuit breaker, enjoying simple structures and reliable operating principles, could not only avoid some malfunctions, for example, the breaker can not keep closed or fails to break, but also lower the power needed for a tripping.
5. Of an optimized integral structure, this vacuum circuit breaker employs a gear drive system instead of the chain drive, which enables it to operate in a far more stable way.
6. Its operation mechanism enjoys a simple overall structure and reliable operating principles. Meanwhile, components employed by each type of the side-mounted breakers are standard products that could be used by its counterparts. Since this mechanism is independently designed and manufactured by our company, we could provide custom products to you according to you specific requirements.

Circuit Control Board

The circuit control board of this electrical switch is designed according to your specific needs. Different from that of the traditional VS1, this penal is equipped with couples of additional mini fuses which, cheap and easy to replace, could effectively avoid electronic components from being burnt.

Successful Application

Since its establishment, Mingde Electrical has been providing electrical equipment to the oil and natural gas industrials and has gained reputation from the customers. Through cooperation with the Russian leading switchgears suppliers, we have had our VMD3 vacuum circuit breakers successfully applied in the factories of the Russian oil leader-Rosneft.

Technical Parameters of the 12V Side-Mounted Circuit Breaker

Boundary Dimension Figures of the 12kV Side-mounted Circuit Breaker

boundary dimension figure of the 12kV handcart type side-mounted vacuum circuit breaker (phase space: 210mm)

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