<P> A transfer switch is an electrical switch that switches a load between two sources . Some transfer switches are manual , in that an operator effects the transfer by throwing a switch , while others are automatic and trigger when they sense one of the sources has lost or gained power . </P>
<P> A transfer switch is an electrical switch that switches a load between two sources . Some transfer switches are manual , in that an operator effects the transfer by throwing a switch , while others are automatic and trigger when they sense one of the sources has lost or gained power . </P>
what is the purpose of a transfer switch
what is the purpose of a transfer switch
switches a load between two sources
switches a load between two sources