Quote:
Originally Posted by 16ACE27
You don't need to hold the switch down. Once the relay moves it stays in that position until you energize it the other way. Hence the term "latching relay".
If you hear it moving, that part is working as designed. The only other failure would be if the contacts had failed so it never connected the batteries to the buss even when it was in that position.
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The latching relay is mounted on the corner post in the upper right corner of the photo