Siemens 6RA7087-6FV62-0-Z Soft Starter Module

Siemens 6RA7087-6FV62-0-Z SIMOREG DC Master Converter is a high-power DC motor drive module in Siemens’ SIMOREG DC Master family. The device is identified as MLFB 6RA7087-6FV62-0-Z and is designed to convert AC input to a controlled DC output for large motors, making it suitable for demanding industrial drives. It carries a rated DC current of 850 A, with listings noting up to 1,200 A at a 400 V supply, reflecting its role in high-torque applications. The unit accepts a maximum input voltage of 298 V RMS and is part of the SIMOREG DC Master converter lineup. The -6FV62-0 variant denotes the power/voltage configuration, while the -Z suffix indicates a packaging variant used in installation contexts. As a DC Master converter, it is typically used as the DC power source within a larger drive system and is designed to be paired with the appropriate control and I/O modules to implement precise speed and torque control for DC motors in industrial environments.