RD52.1-4B-030-L-NN-G3-NN-FW Bosch Rexroth Indramat
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MPN: R911289885
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The Bosch Rexroth Indramat RD52.1-4B-030-L-NN-G3-NN-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control and a built-in brake chopper, and has a rated power of 30 kW. This controller operates on a voltage range of 380 to 480 V with forced air cooling and an integrated mains filter.
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Product Description:
The RD52.1-4B-030-L-NN-G3-NN-FW belongs to the RD 500 Drive Controllers series from Bosch Rexroth Indramat. This drive controller interfaces between a plant's three-phase mains and an induction or synchronous motor. It converts and modulates energy so that torque and speed follow commanded profiles in automated machinery, conveyors, and processing equipment. Its role is to provide stable motor control where process loads may change during normal operation.
This unit accepts a line-to-line voltage window of 380 to 480 V and is configured as a three-phase AC converter, so it connects directly to standard industrial distribution networks. Inside the permissible window, it can withstand supply swings of ±10 %, helping maintain stable operation when incoming power varies. The power stage is rated for 30 kW, which suits medium-frame motors used on pumps, mixers, and extruders. Vector modulation is executed through field-oriented vector control; this method separates stator current into torque-producing and flux-producing components for responsive acceleration, deceleration, and load handling. It also helps the controller react smoothly when motor demand shifts during continuous-duty operation.
A built-in brake chopper routes regenerated energy to an external resistor, preventing DC-bus overvoltage during fast braking events. Thermal management relies on forced air cooling, so air moves through the heat-sink channels to support sustained output in enclosed cabinets. To reduce conducted emissions, an integrated mains filter is installed ahead of the rectifier, which helps limit electrical noise returning to the supply. The controller is categorized as design generation 1, indicating the first hardware release within the RD 500 platform. The base unit has open option slots, and no additional function module is installed.
Frequently Asked Questions about RD52.1-4B-030-L-NN-G3-NN-FW:
Q: Does the RD52.1-4B-030-L-NN-G3-NN-FW have a brake chopper included?
A: The RD52.1-4B-030-L-NN-G3-NN-FW is equipped with a built-in brake chopper for managing regenerative energy.
Q: What is the rated power of the RD52.1-4B-030-L-NN-G3-NN-FW?
A: This drive controller has a rated power output of 30 kW.
Q: What control method does the RD52.1-4B-030-L-NN-G3-NN-FW use?
A: Field oriented vector control is used as the control method in this unit.
Q: What type of supply input does the RD52.1-4B-030-L-NN-G3-NN-FW require?
A: It supports three-phase AC supply input as a converter.
Q: How is the RD52.1-4B-030-L-NN-G3-NN-FW cooled?
A: Forced air cooling is the cooling type implemented in this drive controller.
