The RD52.1-4N-055-D-LV-FW from Bosch Rexroth Indramat features nominal connecting voltage of 3 × AC 380–480 V and plug-through cooling. Part of the RD 500 Drive Controllers, it delivers 55 kW and a 170% per second overload capacity. This converter has a current cycle of 0.1 ms and a torque rise time of 0.3 ms.
It lacks a built-in brake chopper, includes an expanded terminal strip, and needs 0.4 m3/s of cooling air. It weighs 49 kg and has IP20 protection. Power loss is 1.8 kW at full load.
Cooling Mode
plug-through cooler
Nominal Connecting Voltage
3 x AC 380-480 V
Rated Power
55 kW
Unit Type
Converter without a built-in brake chopper