The MZZ30-40.5 series outdoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz outdoor high-voltage electrical equipment with a rated voltage of 40.5kV. Equipped with a spring operated mechanism or an electromagnetic operated mechanism, it can remotely control electric opening and closing, or manually store energy and manually open and close on site. The design performance meets the requirements of the national standard GB1984-89 "AC High Voltage Circuit Breaker" and the requirements of the International Electrotechnical Commission standard IEC-56 "AC High Voltage Circuit Breaker".

Structural features:
The MZZ30-40.5 series outdoor high-voltage vacuum circuit breaker is mainly used for control and protection of outdoor 40.5kV power transmission and transformation systems, as well as for normal operation and short-circuit protection of urban and rural distribution networks and industrial and mining enterprises. The overall structure of this product is a porcelain bottle pillar type; The upper porcelain bottle is equipped with a vacuum arc extinguishing chamber, and the lower porcelain bottle is a pillar porcelain bottle. Suitable for places with frequent operations. It has the characteristics of good sealing, aging resistance, high pressure resistance, non combustion, no explosion, long service life, convenient installation and maintenance, etc.

MZZ30-40.5/1600-31.5 Outdoor High Voltage Vacuum Circuit Breaker Model Meaning


Main characteristics and environmental conditions for use
Surrounding air temperature: upper limit+40 ℃, lower limit -30 ℃ (general areas), -40 ℃ (high-altitude areas);
Altitude: ≤ 1000m (if altitude needs to be increased, the rated insulation level should be correspondingly increased);
Wind pressure: not exceeding 700pa (equivalent to a wind speed of 34m/s);
Amplitude: The seismic intensity does not exceed 8 degrees;
Pollution level: Level III;
Maximum temperature difference: not exceeding 25 ℃.

MZZ30-40.5/1600-31.5 Outdoor High Voltage Vacuum Circuit Breaker Main Technical Parameters

Appearance and installation dimensions

MZZ30-40.5/1600-31.5 Outdoor High Voltage Vacuum Circuit Breaker