Caldwell Electric

Stay warm this weekend!

First test of our rebuild of a WWII era siren used by a local VFD as a tornado siren. Retrofitted with a modern AC Induction motor and VFD variable speed drive.

WWII Era Tornado Siren Rebuild Testing We completely rebuilt this old tornado siren for a local fire department, retrofitting it with a modern AC Induction motor and variable speed VFD AC motor dr...

Preparing to solder the leads on this 75 HP motor. 12 leads is always challenging, especially on a larger motor, but allows for a dual voltage wye-delta start.