Summary
ZW32-12MG/630 type permanent magnetic outdoor vacuum circuit breaker(hereafter referred to as circuit breaker) is the outdoor power equipment , Rated voltage 12KV , three phase 50HZ . Apply to breaking , making the load current , overload current and short circuit current in the power systems . Suitable for the substation and power distribution system of industrial and mining enterprises with the function of control and protection , as well as the frequent operation sites .
The circuit breaker has the features of small size , light weight , free maintenance , Can adopt the severe climate conditions and dirty environment .
The circuit breaker adopt permanent magnetic operation mechanism , greatly improved the reliability and mechanical life of circuit breaker .
Regular Working Conditions
1. Ambient temperature : -45 ℃ ~ +40 ℃
2. The sea level height not above 3000m
3. Wind pressure : Not exceed 700Pa .
4. Air pollution level : Not exceed grade IV .
The installation environment shall be without obvious filth, no explosive or corrosive gas and dust The installation site shall be free of violent sh
Main technical parameters
Description |
Unit |
Parameters |
Rated Voltage |
KV |
12 |
Rated Frequency |
Hz |
50 |
Rated Current |
A |
630 |
Rated short circuit breaking current |
KA |
12.5/18/20 |
Rated short circuit making current |
KA |
31.5/40/50 |
Rated Peak withstand current |
KA |
31.5/40/50 |
4S Rated short time withstand current |
KA |
20 |
Mechanical life |
times |
10000 |
Rated operate voltage and auxiliary circuit rated voltage |
V |
DC220/AC220 |