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Classic controll
The transfer switch has a dry contact consists of two states Open and Close. A 20r 3 cable is available between ATS and Generator.When Transfer switch contact is close a relay on Generator side closes a contact for a brief period to start the Generator. When the ATS switch is Open , the relay on the generator side closes to stop the generatorfor a brief period
Thanks for invitation
I am apologies to answer this question because it's not my specialist field