... -5A,VFS-201,KH8012,LT2(),F2-Q,YDT1-15,YDT1-16,YDT1-17,FS-37,YDT1-101,MD-18S,MD-19 ... circuit.The normal working conditions and installation conditions1, surrounding air temperature does not exceed + 40 °C, lower limit for - 5 °C ... not exceed altitude 2000m.3, air relative humidity of air temperature + 40 °C when does not exceed 50%,in the ambient4 ...