What We Repair

TRIP UNITS

We repair and calibrate all major manufacturers solid state circuit breaker trip units from the late 1960s to present. 

Some examples are:

  GENERAL ELECTRIC  -  PS1-A Power Sensor & Power Supply, SST & ECS Trip unit, VersaTrip, SelecTrip, THP & TGSR Ground Fault relays, Firepump, T4VTG, MicroVersaTrip, MVT, RMS-9, EPIC, MVT Plus, MVT PM, Spectra, Power Plus, ProTrip, WavePro, Static Time Delay, TAK-TS1 & TAK-TS2, TVTS1, TVRMS, TVRMS2 Testsets, & Entelliguard & PLPS4G01 Power Supply.

  WESTINGHOUSE & CUTLER-HAMMER  -  SCB, SPCB (Beaver Box), Amptector, Pow-R Trip 7, Digitrip, DS Tester, Amptector, Digitrip & Seltronics Testsets.

  ITE, BBC, & ABB  -  Red & Grey case SS Power Shield, LSS, MPS, MICRO Power Shield, MPS-C, MPS-C 2000, 504 & Power Shield Testsets.

  SIEMENS & ALLIS CHALMERS  -  Static Trip I, II, & III, LimiTrip, SB Type TL, & PTS-3 & PTS-4 Testsets.

  SQUARE D  -  Micrologic Series B, Merlin Gerin STR28, STR38, STR58U, ST206D, ST316ST & UTS-3 TestSets.

  FEDERAL PACIFIC & FEDERAL PIONEER  -  SS, SD, USD (Rainbow Box), USD-R, FPE, HSS-A, & DSS.

  SYLVANIA  -  RX-2

  MULTILIN SR RELAYS - SR735, SR750, SR269, SR369, SR469, SR489 & Similar

  CIRCUIT SHIELD RELAYS - 49/50/51, 46D/H, 47D/H, 27/59, 87T & Similar

Because we specialize in trip units and the test equipment used to test them, we are the experts in the field.

 Don't see what you're looking for? Call us 601-856-9798

Contact Information: Telephone 601-856-9798 cell 769-231-2584
Address: 175 Ridgeland Plaza, Ridgeland MS 39157

Email:
thyritronics@hotmail.com