1、APPLICABLE CURRENT: The conversion switch is a PC level infrequent conversion switch, with dual station design(A is the common power supply, B is the standby power supply), suitable for AC 50‑60hz AC system 2、PREVENT POWER FAILURE: The main function of the automatic transfer switch is that when the main power supply(common power supply A) fails, the automatic transfer switch will automatically switch to the standby power supply(standby power supply B) to continue working(switching speed is less than 50 milliseconds), which can effectively solve the failure caused by power failure 3、TEMPERATURE RANGE: The operating temperature of the power transfer switch range from ‑5℃ to +40℃, and the average temperature within 24 hours should be lower than +35℃. The storage temperature ranges from ‑25℃ to +55℃, and can reach +70℃ in a short time(within 24 hours) 4、INSTALLATION NOTE: When the ambient temperature is +40℃, the relative humidity of the installation site shall not exceed 50%. The lower the temperature, the higher the relative humidity. For example, when the average minimum temperature in the wettest month is +20℃, the monthly average maximum relative humidity for that month can reach 90%. Appropriate measures should be taken to prevent condensation due to temperature changes 5、POLLUTION : The dual power transfer switch has a pollution level of 3 (conductive pollution, or dry non conductive pollution become conductive pollution due to condensation). The ATS can be installed vertically or horizontally in the cabinet