RD52.1-4B-037-D-NN-FW Bosch Rexroth Indramat
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MPN: R911201334
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The Bosch Rexroth Indramat RD52.1-4B-037-D-NN-FW is part of the RD 500 Drive Controllers series and is a drive controller with a rated power of 37 kW. It features a built-in brake chopper, integrated mains filter, and supports voltages from 380 to 480 V. The controller uses a field oriented vector control type and is cooled with a plug-through cooler.
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Product Description:
The RD52.1-4B-037-D-NN-FW is a drive controller from Bosch Rexroth Indramat in the RD 500 Drive Controllers series. In industrial automation, it sits between the incoming line supply and an AC motor to regulate speed and torque in response to process demand. This arrangement supports stable closed-loop motor operation in equipment such as pumps, fans, conveyors, and other production machinery where repeatable speed control is required.
The controller supplies up to 37 kW of motor power, making it suitable for medium-duty drive applications. Speed and torque are regulated with field oriented vector control, which keeps motor current aligned with the rotor field for accurate dynamic response. Thermal loading is managed by a plug-through cooler for ratings up to 110 kW, which moves heat out of the cabinet and helps protect the electronics during continuous operation. Power quality on the drive side is supported by an integrated mains filter that reduces conducted interference without requiring external filter components. The power section accepts line voltages from 380 to 480 V, covering common industrial supply levels, and the unit is part of design generation 1 in the RD52 platform.
The RD52.1 variant is configured as a three-phase AC converter, so it rectifies incoming power and inverts it to a variable-frequency output within the same housing. During deceleration, a built-in brake chopper directs regenerated energy to an external resistor so the DC-link voltage stays within an acceptable range. Supply variation is permitted within a ±10% tolerance band, allowing the unit to operate on standard plant power without unusually tight regulation. The controller is delivered without application-specific functions installed, and software is ordered separately when additional functionality is required.
Frequently Asked Questions about RD52.1-4B-037-D-NN-FW:
Q: Does the RD52.1-4B-037-D-NN-FW drive controller include a brake chopper?
A: This model features a built-in brake chopper for effective braking operations.
Q: What control type is used in the RD52.1-4B-037-D-NN-FW drive controller?
A: The RD52.1-4B-037-D-NN-FW supports field oriented vector control for precise motor management.
Q: What type of cooling is provided by the RD52.1-4B-037-D-NN-FW?
A: It utilizes a plug-through cooler for cooling applications up to 110 kW.
Q: What is the rated power of the RD52.1-4B-037-D-NN-FW drive controller?
A: The rated power output of this model is 37 kW.
Q: What voltage range does the RD52.1-4B-037-D-NN-FW support?
A: Its operating voltage range is between 380 and 480 V AC.
