RD51.1-4N-030-L-C1-FW Bosch Rexroth Indramat
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MPN: R911203385
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The Bosch Rexroth Indramat RD51.1-4N-030-L-C1-FW is a drive controller in the RD 500 Drive Controllers series, offering a rated power of 30 kW and using U/f curve control. It features forced air cooling, an integrated mains filter, and is designed for three-phase AC voltage in the 380 to 480 V range with a ±10% tolerance.
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Product Description:
The RD51.1-4N-030-L-C1-FW is a drive controller produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It converts fixed-frequency plant power into a variable output for induction motors used in conveyors, pumps, and processing lines. Acting as the interface between the AC mains and the motor load, it enables coordinated speed control, limits inrush current, and permits energy-efficient acceleration and deceleration in automated equipment.
It employs U/f curve control, so the output voltage rises with frequency to keep the air-gap flux constant. Incoming power is handled through a 3 x AC converter topology that rectifies and inverts the three-phase supply before modulation. The permitted line window of 380 to 480 V covers common industrial distributions. A continuous rating of 30 kW can be delivered without derating at the specified ambient temperature. Thermal stability is maintained by forced air cooling; an internal fan draws cabinet air across the heat sink to remove semiconductor heat. As a design generation 1 unit, it shares housing dimensions and interface pinouts with other RD51 controllers.
Beyond the power stage, the unit is supplied without a built-in brake chopper, so external hardware is needed when regenerated energy must be dissipated. Line-side quality is improved by an integrated mains filter, which limits conducted emissions and helps shield nearby sensors from inverter harmonics. Control electronics stay powered through 24 V standby power; this auxiliary line keeps parameters and fieldbus links active when the main contactor is open, supporting orderly shutdown of drives up to 110 kW. Software is ordered separately from the hardware. A supply margin of ±10 % protects the converter from typical voltage dips or swells caused by large sequential starts.
Frequently Asked Questions about RD51.1-4N-030-L-C1-FW:
Q: What is the rated power output of the RD51.1-4N-030-L-C1-FW drive controller?
A: The RD51.1-4N-030-L-C1-FW supports a rated power output of 30 kW.
Q: What type of supply is required for the RD51.1-4N-030-L-C1-FW?
A: This drive controller operates on a three-phase AC supply.
Q: How is the RD51.1-4N-030-L-C1-FW drive controller cooled?
A: Forced air cooling is utilized in this model to maintain optimal operating temperature.
Q: What is the supported voltage range for the RD51.1-4N-030-L-C1-FW?
A: The voltage range supported by this unit is 380 to 480 V.
Q: Does the RD51.1-4N-030-L-C1-FW include a mains filter?
A: This drive controller features an integrated mains filter for reduced electrical interference.
