SD-BD-04-03/Rev.07/29-03-67

             OTTS (ATS) series (open transition transfer switch) is used in DC power 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 80A up to 500A. When main power supply fails, The OTTS switch to standby power supply automatically to ensure reliable power supply system.