In article , Bob Swinney says...

The converter is running unattended and the power fails. When the power
returns, couldn't the circuit breakers be depended upon to trip under the (5
or 6 times normal running current) inrush? I'm beginning to see some light
here --
"Duh! the breakers are already sized to accommodate the inrush current and
they might hold long enough start some crispies in the motor!!!

The thing is, the inrush current for an idler motor with a spinning
rotor is not that large. The overcurrent protection in mine does
not have to be modified to account for that.

I've accidentally entergized the 240 volt feed without spinning
the motor up. The fuses trip out within a second, just enough
time to hear the motor hum briefly. This is a 5 hp motor being
run through 15 amp overcurrent protection. The wiring is number
12 fwiw.

This all having been said, I would never leave this converter
running alone or allow anyone else to run it, as it does not
have a drop-out contactor.

Jim

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