RD51.1-4B-030-L-CF-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: R911203637
Ask for AvailabilityThe Bosch Rexroth Indramat RD51.1-4B-030-L-CF-FW is a drive controller from the RD 500 Drive Controllers series. It offers a rated power of 30 kW and operates at a voltage range of 380 to 480 V. This controller features a built-in brake chopper, integrated mains filter, and uses forced air cooling.
Internal Product Review
The RD51.1-4B-030-L-CF-FW is a Bosch Rexroth Indramat drive controller that stands out for U/f curve control and converter 3 x AC supply compatibility. Forced air cooling and an integrated mains filter support stable operation and clean system integration. A built-in brake chopper strengthens deceleration performance, and the 30 kW rating gives this unit strong industrial value.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The RD51.1-4B-030-L-CF-FW drive controller is produced by Bosch Rexroth Indramat within the RD 500 Drive Controllers series. It converts fixed-frequency plant power into variable output for induction motors used in conveyors, pumps, and general material-handling lines. In routine operation, the controller adjusts output frequency and voltage so motor speed can follow process requirements instead of remaining fixed at line frequency. The unit is intended for closed cabinet installation where forced ventilation is already available, and it links the line supply with motor leads while incorporating filter and braking functions to reduce the need for external accessories.
Rated output power reaches 30 kW, which suits motors with the same nominal power under typical operating conditions. A supply window of 380 to 480 V three-phase AC is accepted, and an input tolerance of ±10 % allows operation during moderate mains fluctuations common in industrial environments. The internal control platform uses U/f curve control, meaning voltage is adjusted in proportion to frequency for stable motor flux when sensor feedback is not used. A built-in brake chopper dissipates regenerated energy into an external resistor, helping prevent DC-link overvoltage during rapid deceleration or overhauling loads. This control approach is well suited to pump, fan, and conveyor duties that need dependable variable-speed operation with a straightforward control method.
Power quality is improved by an integrated mains filter, which attenuates conducted emissions and helps the cabinet meet EMC limits without extra line components. Thermal management relies on forced air cooling, and mounted fans direct airflow across the heat sink so the device can sustain continuous output in compact enclosures. The supply concept is a Converter 3 x AC, which rectifies incoming phases into a stabilized DC bus for the inverter section before generating the motor output waveform. The selectable function set is listed as Combination C1 + F1, which provides the available application features used by this controller configuration.
