On Sun, 13 Nov 2011 15:08:29 -0600, Jeffrey Angus
wrote:

And yes, the coil heats up. It's trying to dissipate
1440 watts. (240 VAC @ 6 amps)

You might want to add a thermal fuse in series with the coil. It the
contactor gets stuck in the energized position, you might have a fire.

The contacts on the transfer switch disconnect the
solenoid coil from power as soon as it starts to move.
Inertia carries it through the sequence.

That happens it the actuator gets stuck or if the energizing voltage
is unusually low? Duz it stick in the "on" state?

Worrying about the widows and orphans this might harm...



--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558