CHA6ER-V71 is original main control PCB for STX marine diesel generators. It integrates AVR automatic voltage regulation, frequency speed closed-loop control and full set of safety protections including overspeed, under-voltage, over-current and low lube oil shutdown. Eight multi-turn potentiometers allow on-site parameter calibration without programming tools. High voltage circuits are potted with insulating glue, and the PCB adopts large-area ground copper foil to resist engine room salt fog, oil mist and electromagnetic interference. Fully compatible with STX generator control cabinets, it serves as standard replacement spare part for marine power plant maintenance.
