● Applicable to power plants, substations, industrial and mining enterprises, residential buildings, high-rise buildings, large hospitals, municipal key projects, and other places.

● Used for three-phase AC 50Hz power system to receive and distribute electric energy, control, protect, and monitor the power system.

● Advanced technology, stable performance, reasonable structure, convenient use, and reliable safety.

● Strong adaptability, with more than 78 main wiring schemes to meet various needs of users.

● PME electric energy management system is optional to realize unattended running, remote control, telemetry, remote adjustment, remote signaling, and other functions.

Normal service conditions

● The ambient air temperature shall not exceed 40℃, and the average temperature measured within 24h shall not exceed 35℃.

● Minimum ambient air temperature - 15℃

● The surrounding air is not notably polluted by dust, smoke, corrosive and/or combustible gas, vapor, or salt mist.

● Temperature conditions

  。The average relative humidity measured within 24h no more than 95%. 

  。The average monthly water vapor pressure no more than1.8kpa.

  。The average monthly relative humidity no more than 90%.

  。The average water vapor pressure measured within 24h no more than 2.2kpa. 

● Vibration or ground motion from the switchgear and external parts of the control equipment can be ignored

● The amplitude of electromagnetic interference induced in the secondary system shall not exceed 1.6kv.

★ For special use conditions exceeding normal use conditions, please consult to reach an agreement.