RD52.1-4B-015-L-NN-FW

The Bosch Rexroth Indramat RD52.1-4B-015-L-NN-FW from the RD 500 Drive Controllers series is a high-performance three-phase AC drive converter designed by Bosch Rexroth Indramat. This unit operates on a nominal connecting voltage of 3 x AC 380-480 V and delivers a rated power of 15 kW at the primary output, with an additional 200 to 230 V AC output rated power of 7.5 kW. A forced air cooling mechanism maintains thermal stability, requiring a minimum airflow rate of 0.05 m3/s to prevent derating or malfunction. Compact and robust, this converter integrates seamlessly into automated systems demanding precise motor control.

Commissioning flexibility is achieved through three selectable pulse frequencies: 4 kHz, 8 kHz, and 12 kHz. At 4 kHz, the drive provides a motor output of 15 kW, an output frequency range of 0 to 250 Hz, a rated output current of 30 A, a peak current of 39 A for 60 s, and a rated output power of 20 kVA. Switching to 8 kHz adjusts performance to an 11 kW motor output, 0 to 500 Hz frequency span, 25 A rated output current, 33 A peak current for 60 s, and 16 kVA rated power. The 12 kHz setting extends the frequency window to 0–1400 Hz, delivering a rated current of 18 A, a peak current of 23 A for 60 s, and a 12 kVA rated output power.

A built-in brake chopper ensures dynamic braking with 7.5 kW continuous power and up to 37 kW peak power, safeguarding both motor and drive during deceleration. This converter ships globally with a one year warranty, making the RD52.1-4B-015-L-NN-FW an ideal choice for industrial applications requiring robust braking, versatile motor performance, and reliable forced-air cooling.