RD52.1-4B-030-L-NN-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911200056
Ask for AvailabilityThe Bosch Rexroth Indramat RD52.1-4B-030-L-NN-FW drive controller is part of the RD 500 Drive Controllers series. It features a rated power of 30 kW, operates with a voltage range of 380 to 480 V, and supports converter 3 x AC supply. The unit includes a built-in brake chopper, integrated mains filter, and uses forced air cooling with field oriented vector control.
Internal Product Review
The RD52.1-4B-030-L-NN-FW is a Bosch Rexroth Indramat drive controller with field oriented vector control. A 30 kW rating and 380 to 480 V operating range make the unit well suited for demanding converter-duty applications. Forced air cooling and a built-in brake chopper add strong thermal management and braking performance, making the package a capable RD 500 solution.
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Product Description:
The RD52.1-4B-030-L-NN-FW is a three-phase AC converter module produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It regulates induction or synchronous motors in automated plant sections where accurate speed and torque control are required. The unit uses closed-loop current and flux control so that machinery can follow demanding motion profiles while maintaining stable process quality. Because the control loop responds quickly to load variation, it can support equipment that must hold consistent operating behavior during acceleration, deceleration, and continuous running.
Its nominal output is 30 kW, which supports medium-sized pumps, extruders, or conveyor drives from the same cabinet. The converter accepts supply lines in the range of 380 to 480 V AC and tolerates line fluctuations of ±10% without derating, which helps it operate on industrial power systems with varying line conditions. Motor regulation is performed with field-oriented vector control, which separates torque-producing and magnetizing currents for responsive speed control. Incoming power passes through a Converter 3 x AC front end, and regenerative peaks are handled by the built-in brake chopper, which diverts surplus DC bus energy to an external resistor. This arrangement helps the drive maintain controlled operation when the connected motor is slowing down or when the load is returning energy to the converter.
Thermal management relies on forced air cooling; fans move cabinet air across heat sinks so continuous output can be delivered without external chillers. Line-borne interference is suppressed by an integrated mains filter, which reduces the need for additional EMC hardware and helps limit conducted emissions on the supply connection. This model belongs to design generation 1. The controller is shipped without additional application-specific functions, leaving parameter slots available for machine-specific setup. This keeps the base configuration open for adaptation to the connected process rather than assigning fixed optional functions in advance.
