RD52.1-4B-037-L-NN-NN-NN-FW

RD52.1-4B-037-L-NN-NN-NN-FW, manufactured by Bosch Rexroth Indramat, is a high-performance member of the RD 500 Drive Controllers series designed for demanding industrial motion applications. This AC drive converter delivers a nominal connecting voltage of 3 x AC 380–480 V and a continuous power rating of 37 kW. It features a built-in brake chopper and an integrated AC mains filter, providing seamless energy management during dynamic deceleration. The front-removable operator panel with graphical display supports on-site commissioning or configuration via RDwin software.

In terms of detailed specifications, the converter employs forced air cooling (Cooling Mode) requiring an airflow of 0.2 m3/s to maintain optimal thermal performance and dissipates 1 kW of heat under full load. The internal brake chopper delivers 23 kW of continuous power and peaks at 93 kW for 1 s, controlled by a maximum resistance of 7 Ω. At a switching (pulse) frequency of 4 kHz, the drive sustains an output current of 68 A and an apparent power output of 45 kVA. The compact power section weighs 36 kg and houses rugged, ESD-protected electronics within a converter that ensures reliable torque regulation.

The converter’s modular design and peer-to-peer coupling via Synchrolink or SERCOS simplify multi-axis integration and synchronization, reducing wiring complexity. Stringent ESD precautions and a robust enclosure guarantee long-term reliability even in harsh factory environments. With global shipping support and a one-year warranty, this unit streamlines deployment across diverse applications, from servo-regulated conveyors to high-precision CNC machinery.