1 Overview
ZW32-(33-40.5)KV type of outdoor high voltage vacuum circuit breaker using integral unique design of embedded pole and high reliability of the operating mechanism.The device is mainly used in medium voltage overhead power grid，As, Load current, overload current and short-circuit current.
High reliability u
U maintenance free completely in the whole life period
U has high mechanical life
U small size, light weight, easy to install

1.1 conditions of use
The ambient air temperature: -30 to +60 DEG c;
The altitude: not more than 3000 meters;
The wind speed is less than 34m/s
"From the switchgear and control equipment of external vibration or earthquake can be ignored;
"The pollution level IV;