RD52.1-4N-022-L-V1-FW

The Bosch Rexroth Indramat RD52.1-4N-022-L-V1-FW from the RD 500 Drive Controllers series is a high-performance AC drive converter designed for robust industrial applications. It operates with a nominal connecting voltage of 3 x AC 380-480 V and delivers a continuous rated power of 22 kW through a three-phase input. This unit type is a converter without a built-in brake chopper, relying on external braking arrangements when regenerative energy must be managed. Cooling is handled via forced air cooling to maintain optimal thermal performance under load.

Engineered to perform in demanding environments, the RD52.1-4N-022-L-V1-FW supports output pulse rates of 4 kHz and 8 kHz. At 4 kHz it achieves up to 43 A continuous output current and 55 A peak for 60 seconds, while at 8 kHz it supplies 35 A continuous and 46 A peak under the same test conditions. The output frequency range spans 0 to 250 Hz at 4 kHz and 0 to 500 Hz at 8 kHz, facilitating precise motor control across a broad speed range. The drive’s IP20 protection class and enclosed housing allow installation inside control cabinets, shielding sensitive electronics from airborne contaminants.

Reliability is assured within ambient temperatures of 0 to 40 °C and up to 90% relative humidity (non-condensing), provided the intake air is free of dust or filtered to 3K3 standards per DIN IEC 721-3-3. Electrically aggressive or corrosive gases and vapors must be excluded to prevent damage. The RD52.1-4N-022-L-V1-FW also supports 24 V external standby power, enabling low-power monitoring and safe shutdown sequences. Firmware for this converter is ordered separately, and installation should be performed by qualified technicians. A one-year warranty from Wake Industrial underscores its reliability and global serviceability.