Automatic transfer switch ATS is a kind of automatic or remote automatic switches, which can insure the swift and isolation of double power or load. The main products double power automatic switch and its accessory intelligent displayer are widely used in high building, telecommunication, mine, shipping, military facilities, industry lines, railways, highways and airports etc. It can better satisfy the reliability since with rapid increase of electricity in cities. Features They can be divided into 2 series. PC series isolation type ATS and CB series intelligent type ATS. Standard compliance: 1.International Standard: IEC60947-1(1998)Low Switch Voltage Equipment and Control Equipment, part one :General Rules. IEC60947-3(1999)Low Switch Voltage Equipment and Control Equipment, Switch, Isolator, Isolation switch, and Combined Electric Equipment of Fuses. IEC60947-6(1999)Low Voltage Switch Equipment and Control Equipment Multi-Function-Switch Automatic Transfer Switch Electrical Device> 2.National Standard: GB/T 14048.1-2000 Low Switch Voltage Equipment and Control Equipment, General Rules. GB/T 14048.3-2002 Low Switch Voltage Equipment and Control Equipment, Switch, Isolation ,Isolation switch, and Combined Electric Equipment of Fuses. GB/T14048.11-2002 Low voltage switchgear and control gear part6-1:Multiple function equipment automatic transfer switching equipment. Operation Environment : 1.Height above sea level does not exceed 2,000m; 2.Ambient temperature is not higher than 40and not lower than below 5; 3.Relative humidity is not larger than 95%; 4.No explosive dangerous medium environment; 5.No rain and snow attack environment; (Note: if the load isolation switch is expected to be used in the condition that the ambient temperature is higher than +40 or is lower than -5-45,customers should inform to the manufactory.)