Asea Brown Boveri 701819-9X Rectifier Assembly

701819-9X Rectifier Power Cube Kit is a compact eight‑terminal bridge rectifier module originally manufactured for Reliance Electric (now part of Baldor) and listed by ABB as a bridge rectifier. The rectangular black power cube carries eight top connections labeled L1, G3, L2, G4, -, G2, +, and G1, and on one side it is marked “SILICON POWER CUBE 8520,” with a bottom metal surface that includes a small mounting hole for chassis installation. It weighs approximately 0.16 lb (0.72 kg), emphasizing its small footprint for integration into drive‑board assemblies. In contemporary catalogs this part is described as a rectifier power cube kit and is recognized as a legacy/obsolete module that has been superseded by 701819-303AW in newer assemblies. While exact compatibility depends on the original drive or control system, the 701819-9X is associated with older Reliance Electric Baldor drive components and related ABB/Reliance power conversion equipment, where it would serve to convert AC to DC within the rectification stage of the system. Availability today is typically through surplus or specialist distributors, and the unit is sold as a rectifier module rather than a complete drive assembly.