ZW7-40.5 Series outdoor high voltage vacuum circuit breakers are main switchgear of AC 50Hz, 40.5KV,
which is assembled with spring operating or electromagnetic operating mechanism. It can be operated to
switch on/off by remote control, and it is also charged and switched on/off by hand. The design function of
breaker complies with the requirements of GB1984-89 and IEC56 "AC high voltage circuit breaker", it is mainly
used in outdoor 35KV distribution system to control and protect, also for normal operating and protecting short
circuit of urban, rural network, or industrial enterprises. Its overall structure is supported by porcelain insulator,
vacuum interrupter built in upper insulator, downside insulator used for supporting. The breaker applies to
frequent operating places, with the advantages of good sealing, anti-aging, high voltage withstand, non flame,
non explosion, long working life, easy installation and maintenance and etc.
