RD51.1-4N-030-L-CF-FW Bosch Rexroth Indramat
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MPN: R911200558
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The Bosch Rexroth Indramat RD51.1-4N-030-L-CF-FW is a drive controller from the RD 500 Drive Controllers series. It features U/f curve control, has a rated power of 30 kW, and operates with a voltage range of 380 to 480 V. This unit uses forced air cooling and includes an integrated mains filter.
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Product Description:
The RD51.1-4N-030-L-CF-FW is a drive controller produced by Bosch Rexroth Indramat and assigned to the RD 500 Drive Controllers series. The unit forms part of an AC converter cabinet line that processes three-phase line power to drive induction motors in conveying, pumping, and general motion tasks. As a controller, it modulates voltage and frequency to match load requirements, allowing reliable speed regulation in automated machinery. It is intended for variable-speed operation of induction motors where stable output is needed across changing process loads.
It regulates motor flux by means of U/f curve control, a method suited for constant-torque applications where feedback devices are not required for basic speed control. The power stage is rated for 30 kW, and it delivers this output when the incoming three-phase supply is between 380 to 480 V. This power range is suitable for medium-duty industrial equipment that needs steady motor control from a cabinet-mounted converter. Because industrial voltages often fluctuate, the controller tolerates line variation of ±10%, which helps avoid unnecessary trips during normal supply changes. The unit has an integrated EMC line filter, so no external filter cabinet is required to reduce conducted emissions. This version uses design generation 1 hardware.
Thermal management relies on Forced air cooling, with internal fans drawing cabinet air across the heat sink to remove power-section losses during operation. Dynamic braking energy is routed back to the DC link only, and the controller comes without a built-in brake chopper, so an external chopper is required if regenerative peaks exceed link limits. Input phasing uses a three-phase AC converter input configuration that matches standard industrial power without a transformer stage. Functional option coding includes the C1 + F1 combination, which adds control terminals and local keypad capability. This arrangement supports direct operating access at the controller while preserving the cabinet-based layout of the drive system.
Frequently Asked Questions about RD51.1-4N-030-L-CF-FW:
Q: What is the rated power capacity of the RD51.1-4N-030-L-CF-FW drive controller?
A: The RD51.1-4N-030-L-CF-FW has a rated power output of 30 kW.
Q: What input voltage range does the RD51.1-4N-030-L-CF-FW support?
A: This device operates with a voltage range of 380 to 480 V AC.
Q: What type of control method is used in the RD51.1-4N-030-L-CF-FW?
A: It features U/f curve control for motor management.
Q: Does the RD51.1-4N-030-L-CF-FW include a built-in mains filter?
A: A mains filter is integrated in this drive controller.
Q: What cooling method does the RD51.1-4N-030-L-CF-FW utilize?
A: The RD51.1-4N-030-L-CF-FW uses forced air cooling for thermal management.
