RD52.1-4N-045-W-NN-FW

The Bosch Rexroth Indramat RD52.1-4N-045-W-NN-FW AC Drive Converter is part of the RD 500 Drive Controllers series and delivers precise drive control for synchronous and induction motors. This converter without a built-in brake chopper operates with a nominal connecting voltage of 3 x AC 380-480 V, providing a rated power of 45 kW. The device’s primary function is to convert three-phase AC input into a regulated output for high-performance motor control in industrial automation systems.

Leveraging field-oriented regulation, the RD52.1-4N-045-W-NN-FW supports adjustable pulse width modulation (PWM) frequencies from 4 kHz to 12 kHz, yielding output frequencies up to 1400 Hz. This unit belongs to size class C, ensuring compact installation in control cabinets. The liquid cooling mode maintains optimal operating temperatures, while its IP 20 rating (EN 60529) guarantees touch protection and resistance to dust and objects larger than 12 mm. Firmware updates are available as a separate subposition to maintain compatibility with evolving control strategies.

Designed for robust industrial environments, the RD52.1-4N-045-W-NN-FW requires a coolant-based cooling circuit and supports ambient temperatures between 0 °C and 40 °C. Its compact footprint and liquid-cooled design reduce cooling air demands and improve energy efficiency. Compliance with IP 20 standards and the availability of dedicated firmware enhance reliability and ease of integration with existing automation architectures. In industrial applications, this drive converter delivers smooth torque control, reduced motor wear, and consistent high-speed performance, resulting in increased uptime and optimized productivity.