> In my experience, what you are describing is best suited for a relay,
> but I suggest
> (1) that it be socketed (for easy replacement)

At 30A I'd rather have something securely screwed or soldered in.  I had
repeated problems with a 30A fuse on a 12VDC to 110VAC inverter.  Even
though the correct fuse holder was used, the fuse kept blowing not due to
current, but because the ends go so hot that the fuse element melted.  The
problem was fixed by soldering in a 30A circuit breaker.  Note that even
10mOhms at 30A dissipates 9W.


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