RD51.1-4N-030-L-DF-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: R911200735
The Bosch Rexroth Indramat RD51.1-4N-030-L-DF-FW is a drive controller from the RD 500 Drive Controllers series. It provides 30 kW rated power, U/f curve control, and operates with a voltage range of 380 to 480 volts. This controller features forced air cooling, an integrated mains filter, and functions with a NAMUR terminal strip and external 24 V stand-by power.
Internal Product Review
The RD51.1-4N-030-L-DF-FW is a Bosch Rexroth Indramat drive controller with U/f curve control for stable, predictable operation. A 30 kW rating and 380 to 480 V input range make the unit well suited for demanding converter-duty installations. Forced air cooling and an integrated mains filter support efficient thermal management and clean system integration.
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Product Description:
The RD51.1-4N-030-L-DF-FW is a drive controller manufactured by Bosch Rexroth Indramat and included in the RD 500 Drive Controllers series. Intended for cabinet installation inside automated machinery, the unit converts fixed-frequency three-phase mains into a variable voltage and frequency output. This allows induction motors in conveyors, mixers, or pump stations to follow commanded speed references while production is running.
Motor regulation is achieved through U/f curve control, a scalar technique that keeps magnetic flux constant by proportionally linking output voltage to frequency. The power stage is supplied from a three-phase AC converter input and accepts line voltages in the 380 to 480 V range. Within that range, the module delivers a continuous shaft-power capability of 30 kW for medium-size industrial motors. Thermal energy is expelled by forced air cooling, and an integrated fan draws cabinet air across the heat sink so rated output can be maintained without additional liquid or ducted cooling. This device is identified as design generation 1, and its application software is ordered separately to match the desired control functions.
The drive operates without a built-in brake chopper, so external braking or regenerative hardware must be fitted when rapid stops are required. An integrated mains filter attenuates conducted emissions and helps meet EMC limits without extra line components. The input can withstand voltage deviations of ±10 %, allowing continued service during common utility fluctuations. Control wiring is handled through a NAMUR terminal strip with external 24 V standby power, keeping feedback and interlock signals energized even when the main converter is de-energized. Additional diagnostics are available through feedback of current filter phases U6, V6, and W6, which supports condition monitoring.
