Siemens 6SE7031-6EB87-2DA1 Braking Unit

Siemens 6SE7031-6EB87-2DA1 is a braking unit in the SINAMICS / SIMOVERT MASTERDRIVES family, engineered to dissipate braking energy in external brake circuits within high‑power drives. It handles 510 to 650 V DC braking energy and is rated for 100 kW of braking power, making it a dedicated solution for external braking resistor configurations in Masterdrives systems. The enclosure carries IP20 protection, suitable for controlled industrial environments, and the package includes documentation on CD as part of Siemens’ Masterdrives braking unit offerings. This 100 kW model sits alongside higher‑capacity variants such as the 170 kW 6SE7032-7EB87-2DA1, providing flexibility across different drive sizes while sharing the same Masterdrives braking architecture. Intended to work with external brake resistors to convert deceleration energy into heat, it is designed for integration within Siemens’ MM440 Masterdrive braking unit ecosystem and aligns with the standard Masterdrives installation practices for SINAMICS/SIMOVERT systems.