The 413-5714 is a Letourneau AC/SCR trigger card responsible for generating precise firing pulses for silicon-controlled rectifiers (SCRs) in Letourneau AC drive and power conversion systems. The SCR trigger circuit controls the exact timing of SCR conduction within the AC waveform, regulating the power delivered to motors and other loads through phase-angle control. Failure of the trigger card disrupts controlled power delivery, causing drive system faults or complete shutdown. Letourneau SCR trigger boards are specialty components maintained primarily through repair, as new replacements are difficult to source. Powergenics offers professional repair services for the Letourneau 413-5714, restoring accurate SCR gate drive and firing control to your drive system. Call 800-861-9773 for pricing and availability.
Need This Board Repaired or Sourced?
Powergenics repairs and supplies industrial circuit boards with a 3-year warranty and 98% success rate. We are SDVOSB certified and hold a GSA contract. Rush turnaround available.