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

● Strong adaptability, with more than 216 main wiring schemes to meet various needs of users.

● PEM electric energy management system can be selected to realize unattended, remote control, telemetry, remote adjustment, remote signaling and other functions.

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

Normal service conditions

 ● Minimum ambient air temperature - 15℃

 ● Altitude no more than 1000m

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

 ● 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.

 ● Humidity conditions 

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

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

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

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

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