Industrial SQ-300 Power Guard Management System

Industrial SQ-300 Power Guard Management System is a GE Power Guard automatic voltage control module designed for electrostatic precipitator power supplies. It accepts 480 VAC line voltage at 50/60 Hz and uses a control input of 85–132 VAC at 50/60 Hz to regulate the high‑voltage output, with a control current of roughly 0.11–0.18 A. The unit features automatic ramp‑rate control and an adjustable background power setting, enabling precise voltage changes while maintaining a defined baseline power. This module supports reliable ESP operation in industrial settings by smoothing transitions and protecting equipment from voltage transients as part of GE's Power Guard family. Typical applications include facilities that employ electrostatic precipitators for particulate control, such as industrial processing plants and power generation sites. The SQ‑300 is a compact unit, shipping around 14 pounds, and is designed for retrofit or new ESP installations where robust voltage management and ramp control are essential.