SD-BD-04-03/Rev.09/14-03-68

         OTTS (AS-I series) open transition transfer switch, is used in DC power supply system and AC power supply system with frequency of 50Hz/60Hz,rated working voltage is AC 690V or up to DC 250V, rated working current is 100A up to 500A. When main power supply fails, It switch to standby power supply automatically to ensure reliable power supply conforms to IEC:60947-1 & 60947-6-1