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

The Bosch Rexroth Indramat RD52.1-4B-037-D-NN-FW from the RD 500 Drive Controllers series is a high-performance AC drive converter designed for versatile industrial applications. This Converter with a built-in brake chopper delivers a Rated Power of 37 kW at a nominal connecting voltage of 3 x AC 380-480 V. Equipped with a plug-through cooler as its Cooling Mode, it ensures effective thermal management without the need for external fans. The unit’s robust design supports continuous operation and simplifies integration into conveyor systems, assembly lines, and machine tools.

Reliability is paramount: the RD52.1-4B-037-D-NN-FW features a continuous brake chopper power of 23 kW and a minimum resistor value of 7 Ohms at a PWM frequency of 4 kHz, enabling precise energy dissipation during dynamic braking. Variable PWM settings yield a derated output of 30 kW at 8 kHz, while maintaining full 37 kW at 4 kHz for peak torque demands. Rated currents of 68 A at 4 kHz and 56 A at 8 kHz accommodate a wide performance envelope, ensuring smooth acceleration and load handling. Advanced radio-interference suppression and EN 55011/EN 61800-3 compliance guarantee EMC resilience in harsh industrial environments.

Installation and commissioning are streamlined: with an IP20 protection class enclosure and size class C footprint, the converter resists dust ingress and large particles over 12 mm. Its operating temperature range of 0 to 40 °C and permittable air humidity up to 85% at 28 °C suit diverse workshop climates. Prior programming is required to tailor vector control parameters, after which the device functions reliably under continuous load. Backed by a one-year warranty from Wake Industrial, the RD52.1-4B-037-D-NN-FW offers a dependable solution for automation professionals seeking precise speed control and energy-efficient braking.