RD51.1-4N-015-P-NN-FW Bosch Rexroth Indramat
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MPN: R911201197
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The Bosch Rexroth Indramat RD51.1-4N-015-P-NN-FW is a drive controller from the RD 500 Drive Controllers series, featuring a rated power of 15.0 kW with a voltage range of 380 to 480 V. It supports U/f curve control and uses heat dissipation panel cooling for power ratings up to 18.5 kW. The drive controller comes with an integrated mains filter and operates as a 3-phase AC converter.
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Product Description:
The RD51.1-4N-015-P-NN-FW drive controller is produced by Bosch Rexroth Indramat as part of the RD 500 Drive Controllers series. Intended for cabinet mounting, it operates between a three-phase power source and an asynchronous motor to regulate speed and torque in conveyors, mixers, and pump stations used in automated equipment. By combining power conversion, protective monitoring, and output control in one enclosure, the unit supplies controlled AC power to the motor while leaving machine sequencing to the PLC. This layout supports installations that need centralized motor control without placing separate switching and monitoring modules around the cabinet. Because the drive generates the motor output internally, the connected control system can issue setpoints and status logic without directly handling motor current.
Continuous operation uses U/f curve control, which keeps output voltage and frequency in proportion so motor flux remains stable across the normal operating range. The controller uses a Converter 3 × AC supply connection and accepts line voltages from 380 to 480 V, allowing it to connect to common industrial mains without an input transformer. It is sized for applications up to 15.0 kW, making it suitable for medium-duty motor loads in process and material-handling systems. Heat is directed to a rear heat dissipation panel, so losses can pass into the cabinet wall instead of relying only on internal airflow.
The unit uses Design Generation 1, so compatible control accessories must match that generation. Input fluctuations are accommodated within ±10 %, which helps the controller continue operating through normal variation in plant power. Harmonic suppression is supported by an integrated mains filter, reducing conducted noise on the incoming line and simplifying panel layout. Because the drive comes without a built-in brake chopper, braking energy from decelerating loads must be managed by external hardware or by a regenerative system when the application requires it. This arrangement is common in systems where stopping energy is low or where braking components are mounted elsewhere in the drive cabinet.
Frequently Asked Questions about RD51.1-4N-015-P-NN-FW:
Q: Does the RD51.1-4N-015-P-NN-FW include a brake chopper?
A: This model is manufactured without a built-in brake chopper.
Q: What is the rated power output of the RD51.1-4N-015-P-NN-FW drive controller?
A: The RD51.1-4N-015-P-NN-FW supports a rated power output of 15.0 kW.
Q: What control method does the RD51.1-4N-015-P-NN-FW use?
A: This drive controller utilizes U/f curve control for its operation.
Q: Is a mains filter included with the RD51.1-4N-015-P-NN-FW drive controller?
A: The RD51.1-4N-015-P-NN-FW features an integrated mains filter.
Q: What voltage range does the RD51.1-4N-015-P-NN-FW support?
A: Its voltage range is specified as 380 to 480 V with a tolerance of ±10%.
