question

graham914 avatar image
graham914 asked

Multiplus 2 ac input

Hi

On multiplus 2 pictures of units, on some of the schematic's on the front panel the AC input line shows 2 relays / contractors in series, where as some pictures of units only show 1.

Why is this.?

Thanks

Multiplus-II
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1 Answer
Alex Pescaru avatar image
Alex Pescaru answered ·

From some point during time, the safety rules in some countries demand 2 series relays for AC disconnect.

So older units have 1 relay, newer ones 2 relays.

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