I have considered your responses and you have confirmed my gut reaction that it was a poor design. The reason for trying to avoid the interposing relay is lack of power supply capacity/margin in the cabinet where the relay would be located. In this case I am going to specify the interposing...
I am redesigning a circuit which currently uses two DPDT pressure switches; both at the same setpoint. Each switch pole actuates two contactors, for a total of eight contactors,each with a 120VAC coil rated at 96 VA.
I need to modify the circuitry so that a single pressure switch pole...