ZN7 series vacuum circuit breaker, under normal circumstances, VCB can be used as infrequent line conversion and motor were infrequent start function.
Used mainly in the using of protection and control of the electrical apparatus. In being vacuum in stylus for medium, therefore, its volume little, withstand voltage is high, breaking is high in ability, have long performance life, stylus needn’t maintenance, especially because its electric arc is not exposed, safe and reliable advantage, it is industrial sectors such as coal, electricity, chemical industry, metallurgy, petroleum, etc.
|
Model |
Rated voltage |
Rated current |
Ultimate breaking capacity |
Electrical life |
Mechanical life |
Inherent in opening time |
|
ZN7-400/1140 |
1140V |
400A |
8KA |
3000 times |
20000 times |
≤30ms |
|
DZ1-400/1140 |
1140V |
400A |
8KA |
3000 times |
20000 times |
≤30 |
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