LTC & 3-Phase Controls

At Shewmaker Electronics Inc. we currently repair all of the following types of LTC and 3 Phase regulator controls.

If you are searching for a particular model number, you can press Ctrl + F to bring up a search box at the bottom of your screen.
If you have questions about repairing an LTC control that is not on this list, please give us a call at 1-800-330-5409.

GE LTC Controls:

WESTINGHOUSE LTC Controls:

SIEMENS-ALLIS LTC Controls:

  • MJ-2AT, MJ-3T MJ-3AT – “Watchdog” controls
  • IJ-2T, IJ-2AT – Solid state controls
  • SJ-4T, SJ-6T – Mag Amp controls
  • SJ-5T – Mag Amp controls

MOLONEY / TEMPO LTC Controls:

COOPER (McGraw) LTC Controls:

  • 323061011 – Vacuum Fault Relay
  • Type 550 – Control assembly
  • VTSN 550 – voltage sensor relay only
  • TAC142255 – Solid state regulator control
  • CL-1, CL-2, CL-2A – Digital controls

BECKWITH LTC Controls:

QUALITROL 909