Corsa Silent choice power

[VetteLT193]

I have a new Donzi ZXO. since the boat was new when I turn Silent Choice on the volts take a pretty large dive. The engines if at idle will even take a momentary hit in RPM until they correct themselves. I see a consistent .5-1 volt drop when Silent choice is engaged. I have tried it with the battery switches in various spots and it's always the same outcome.

Is this normal? it seems like quite a power draw to me.

 

[boatnuts]

The Corsa diverters have a rather heavy draw to open the butterfly. Once they are open the voltage drops considerably to maintain them open. It is the way they were designed.

 

[Topher]

CMI offers an electric diverter that draws NO amps while in a closed or open position, just 4 amps to make the switch.