View Single Post
  #53   Report Post  
Posted to
Jeff Liebermann Jeff Liebermann is offline
external usenet poster
Posts: 4,045
Default Re-winding solenoids.

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

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
Santa Cruz CA 95060
Skype: JeffLiebermann AE6KS 831-336-2558