*BBA-400/4 automatic transfer switch is suitable for AC 50Hz, AC rated voltage to below 400V,the rated current of 125—800A is suitable for the mutual conversion of the two—way power supply of the emergency power supply system, and the power supply to the load is interrupted during the switching of the power supply.
* The switch works reliably under the following conditions:
* The height above sea level does not exceed 2000 meters;
* The ambient temperature is not higher than +40°C , not lower than —5“C ; The relative humidity of the air is not more than 95%;
* There is no explosion hazard medium, and the medium does not have enough gas and dust to corrode metal and destroy insulation;
* Places without significant shaking and shock vibration; Environment free from rain and snow.
