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1.(Must be connected)Take zero line and fire line from the common control incoming line to connect AR (live wire) / AN (neutral line) 2.(Must be connected)Take zero line and fire line from the backup control incoming line to connect AR (live wire) / AN (neutral line) 3.The power indication signal is passive output, and the generator signal is taken (common) and (normally closed) 4.Connect the load end at the lower end of the (standby power supply side), Stepped wiring 5.There is an isolation board on the load. When wiring, first remove the isolation board, connect the load and then install the isolation board (it is recommended to connect the load first, then connect the backup power supply) Note: The backup power must be connected to the city power AC230V, this is for PV type automatic transfer switch. ATSE is composed of TSE and the controller. ATSE compiles with requirements of Low-voltage Switch Gear and Control Gear specified by GB/T14048. 11, Part 6-1 : Multiple functional equipment and transfer switch equipment. Type:Moulded Case Model Number: W2R-Solar-4P-63A-230VAC is_customized:Yes Product Name: Solar Dual Power Automatic Transfer Switch ATS Insulation Voltage:AC 690V Rated Working Voltage:AC 230VAC Rated frequency:50/60Hz Rated Working Current : 63A Guarantee:2years Mounting:Din Rail