redarc smart isolator

I can understand to some degree, but still would like to ask:
Why would you want to replace the existing solenoid switch with the newer one, and why the old and new one together?
Although the switching will done by only one solenoid, the current splits up between the two, which has some benefits in really heavy load applications.
But that's where the advantage ends. Not worth the extra complexity in a typical setup.

cheers, Peter

Hi Al

I believe you are intending to put it in series [not parallel ]with the existing one .
That has no problems except possible extra contact resistance causing some loss of voltage
Absolutely no point in parallel except if you wanted heavier currents than the Redarc is rated ,but this would negate main reason for having a voltage sensitive relay [Redarc]


Peter

I assume you have the old style 3 post isolator. IF so ....chuck it. The red arc is a top quality product and is a lot more reliable than the older type( if this is what you have). 1 isolator only . Wire it up correctly , even if in hard to gwt to place (why not move it?).
cheers

The big advantage of the Redarc the isolator does not connect power till the vehicle is started and alternator voltage is stabilised. If you are powering a fridge or other electronic equipment it will not damage the equipment like it can with a straight solenoid. When cranking voltage goes as low as 8V and can and does damage some equipment.

The redarc is the current model 100amp I don't really want to run the two together. like I said in my post the solenoid is hard to get at, but reading your replies I think I will bite the bullet and remove the solenoid. Why have another thing that can go wrong.
Thanks all.
AL

I have been using an 80amp solenoid for years on my 80 series but my axillary battery is in my caravan and not permanently connected with my main battery. I have had no problems with this set up and therefore would not cough up for a Redarc.