Seamless compatibility This control board is designed to operate with a 100A SCR system, featuring a userfriendly digital interface that clearly displays current settings and timing for efficient welding processes. Reliable crossing technology Equipped with a dependable crossing detection circuit, this controller ensures precise thyristor phase shifting for welding performance. Enhanced safety isolation Strong and weak currents are separated through advanced optocoupler technology, providing safety during use and minimizing electrical risks. Easy connections Features screwless quick connection terminals for both the power cord and foot switch cord, enabling a hassle setup while maintaining reliable connections. Use scenarios Upgrading an existing 100A SCR welding power supply in a metal fabrication to gain a clear digital readout of current settings and integrated time management for consistent welds. Deploying in a compact welding unit that uses a 100A SCR system to improve setup speed, safety isolation, and reliable cord connections with quick terminals. Integrating into an automated welding cell where accurate crossing detection and thyristor phase control contribute to stable, repeatable welds and safer operation for personnel.