... control switch 4.ATS Switch similar with SOCOMEC MCSC Series Dual power supply auto transfer(ATS) switch, adopts twenty century advanced ... fast switch features.And it can be utilized in double power supply infrequence switching -- insulated rating voltage AC800V and DC250V, ... .It can be widly used in the places, needed double power continuedly, such as emporium, telecom, fire protection, military, mine ...