ZW20(A)-12(FG) / 630-20 Series Outdoor High Voltage Vacuum Circuit Breaker

ZW20(A)-12(FG) / 630-20 Series Outdoor High Voltage Vacuum Circuit Breaker
ZW20(A)-12(FG) / 630-20 Series Outdoor High Voltage Vacuum Circuit Breaker
ZW20(A)-12(FG) / 630-20 Series Outdoor High Voltage Vacuum Circuit Breaker

Welcome to enquire to us by formal email, so that we can receive your information smoothly and reply you promptly. Thank you.



The ZW20-12 outdoor column high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12kV and a three-phase AC 50Hz. It is mainly used for breaking and closing the load current, overload current and short-circuit current of the power system. It is suitable for protection and control of substations, industrial and mining enterprises and urban and rural distribution networks, especially for places with frequent operations and automatic distribution networks of urban networks. This product is matched with the controller, which can meet the requirements of the distribution automation system, and can reliably and effectively complete the traditional recloser function. It adopts a mature box-type sealing structure, filled with SF6 gas, and has good sealing performance, so that it is not affected by the external environment, and is a maintenance-free product. Its spring operating mechanism adopts direct-acting chain main drive and multi-stage tripping system, which has high reliability and is the best product for column-mounted circuit breakers.



Model Meaning




Normal Use Environment

1. The altitude does not exceed 3000m;

2. The upper limit of ambient air temperature does not exceed 40°C, the lower limit does not exceed -40°C, and the daily temperature difference is 25°C;

3. The wind pressure does not exceed 700Pa;

4. Contamination level: IV;

5. Ice thickness 100mm;

6. Installation site: no flammable, explosion hazard, chemical corrosion site;

7. The degree of earthquake sequence shall not exceed 8 degrees.



Technical Parameters




Installation Dimensions


News Center

> What is a Circuit breaker

Circuit breaker is a crucial electrical component designed to protect electrical circuits and appliances from damage caused by excess current. It functions as a safe...

> What is the role of a fuse?

A fuse refers to an electrical device that, when the current exceeds a specified value, uses the heat generated by itself to fuse the melt and disconnect the circuit...

> What is the difference between a low voltage circuit breaker and a high voltage circuit breaker?

High voltage circuit breaker is a mechanical device. The device can generate, carry and interrupt current under normal conditions. It can also carry and interrupt cu...

> Precautions for the working principle of molded case circuit breakers

The molded case circuit breaker adopts a heat release contact. When the current exceeds the rated value, the contact is heated, causing the spring force to decrease,...



Get in Touch

Captcha Code
If you are interested to be our agent in your market, we will be your strong backup.
Find us to cooperate
We value your privacy
We use cookies to provide you with a better online experience, analyse and measure website usage, and assist in our marketing efforts.
Accept All