The series of SINAMICS DC MASTER DC Converters includes:

• The electronics module with the Control Unit (CUD) and the slot for expansion using another CUD (in a cradle that can be swiveled out),
• The power section with thyristors in a fully-controlled three-phase bridge circuit configuration (two-quadrant drive: B6C or four-quadrant drive: (B6) A (B6) C),
• A fan (up to 125 A: self-ventilated),
• A single-quadrant field power section with integrated free-wheeling circuit (optionally, also without field or as two-quadrant field with integrated field overvoltage protection),
• The electronics power supply,
• A standard BOP20 operator panel (AOP30 Advanced Operator Panel as accessory).