Siemens 6RA8078-6DV62-0AA0 SINAMICS DCM DC Converter 280A 420V DC 4-Quadrant 400V 3AC

The unit is designed for a 3-phase 400 V AC supply with a rated armature input current of approximately 232 A, and provides a 420 V DC rated output voltage and 280 A rated DC output current. It incorporates a controllable field rectifier for DC motor field excitation. Siemens documentation specifies a rated armature power of approximately 118 kW.

The four-quadrant configuration supports motoring and regenerative operation in both directions, making it suitable for applications involving frequent acceleration, deceleration, reversing, and regenerative braking.

Key Features

• SINAMICS DCM four-quadrant DC converter designed for high-performance industrial DC motor control.
• 280 A rated DC output current and 420 V DC output voltage.
• 400 V, 3-phase AC input, with a rated armature input current of 232 A.
• Four-quadrant operation supports forward/reverse motoring as well as regenerative braking in both directions.
• Integrated controllable field rectifier, suitable for separately excited DC motors.
• Rated armature power of approximately 118 kW.
• Digital closed-loop control enables precise speed, torque, and current regulation.
• Suitable for applications with frequent starting, stopping, reversing, and braking.
• B6A/B6C circuit configuration for armature and field circuits.
• IP00 design for installation inside a suitable electrical cabinet.
• Designed for reliable continuous operation in demanding industrial environments.

Main Applications 

The Siemens 6RA8078-6DV62-0AA0 is suitable for a wide range of industrial DC drive applications, including:Steel and metal processing equipment  Rolling mills  Paper and printing machines  Cranes and hoisting systems  Winding and unwinding machines  Extrusion machinery  Conveyor systems   Mining equipment  Production line machinery  Industrial DC motor systems

Typical Applications

DC motor speed control

Torque control

Four-quadrant reversible drives

Regenerative braking

Rolling mill drive control

Crane and hoist control

Winder and unwinder systems

Conveyor drive systems

Industrial machine modernization

High-power variable-speed DC motor applications

Product Status：Current / Active

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