An Automatic Power Factor (APFC) Panel manufacturer is a specialized company that designs, fabricates, and installs a crucial component for industrial and commercial electrical systems. These panels are the core of a power management system, designed to continuously monitor the power factor of a facility and automatically adjust it to a desired level, typically close to unity (1.0). The manufacturing process involves integrating a microprocessor-based relay, a series of capacitor banks of varying sizes, contactors, and protective devices within a sturdy sheet metal enclosure. The manufacturer's expertise lies in engineering a system that can dynamically switch these capacitors on or off to neutralize the 'reactive power' drawn by inductive loads like motors and transformers, thereby ensuring efficient power utilization and preventing costly penalties from utility companies.