Product Overview
   ZN23-40.5 series indoor high voltage vacuum circuit breaker is a three-phase AC 50Hz, rated voltage 40.5kV indoor power distribution device, equipped with CT19BN spring operating mechanism or CD10 Ⅲ electromagnetic operating mechanism.

   It is suitable for the protection and control of AC power distribution system, and frequent operation places such as electric arc furnace transformers. It is not suitable for dangerous places such as inflammable and explosive.
Working Environment
◆ Ambient temperature: upper limit +40 ℃ ; lower limit -10 ℃ in general
areas, -25℃ in high-cold areas;
◆ Relative humidity: daily average not more than 95%, monthly average not
more than 90%; saturated vapor pressure daily average not more than
2.2×10-3MPa, monthly average not more than 1.8×10-3MPa;
◆ The altitude does not exceed 1000m;
◆ No corrosive gas;
◆ No frequent strenuous exercise.
Main Technical Parameters