RD52.2-4B-003-L-NN-FW

RD52.2-4B-003-L-NN-FW, Bosch Rexroth Indramat, RD 500 Drive Controllers opens a new chapter in precision AC drive technology with its modular, scalable architecture. Engineered for synchronous and induction motors, the RD52.2-4B-003-L-NN-FW blends a high-efficiency forced air cooling system with a compact chassis, ensuring optimal thermal management in dense drive bays. This converter unit features a built-in brake chopper and adheres to a Type 2 design philosophy, delivering both safety and high-performance braking energy handling. Rated for 3 kW continuous output, it accepts a 3 x AC 380-480 V input, making it ideal for medium-duty industrial motion control applications.

Incorporating an adjustable pulse frequency of 4 kHz, 8 kHz, or 12 kHz, the unit offers fine-tuned control over motor torque and speed profiles. The integrated brake chopper provides a continuous power rating of 1.5 kW, spikes to 10 kW peak, and features a minimum resistance of 60 Ω, permitting efficient regenerative feedback. A sealed IP20 enclosure shields sensitive electronics from dust and solids over 12 mm, while compliance with EN 61800-3 Class A1 ensures electromagnetic compatibility in industrial environments. Ambient operation is supported up to 40 °C with relative humidity up to 90 %, and the converter is both idling-proof and earth-fault resistant by design.

Bosch Rexroth Indramat’s RD52.2-4B-003-L-NN-FW integrates seamlessly into the broader REFUdrive RD50 ecosystem, enabling plug-and-play expansion with DC supply inverters, rectifiers, and regenerative modules. Its robust construction and proven reliability minimize downtime, while the modular software architecture accelerates commissioning and simplifies firmware updates. Built for demanding production lines, this controller delivers consistent performance and extended service life in applications from packaging machinery to conveyor systems.