RD51.1-4B-007-L-NN-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911200035
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Bosch Rexroth Indramat RD51.1-4B-007-L-NN-FW is a drive controller in the RD 500 Drive Controllers series. It features a rated power of 7.5 kW and supports a voltage range of 380 to 480 V with a tolerance of ±10 percent. The controller utilizes U/f curve control, has an integrated mains filter, and includes a built-in brake chopper with forced air cooling.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The RD51.1-4B-007-L-NN-FW drive controller is produced by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. Designed for cabinet installation, it bridges the fixed plant supply and an asynchronous motor by adjusting output frequency so industrial equipment maintains commanded speed profiles. By combining protective and control electronics in one housing, it supports coordinated motor operation in packaging lines, material transport systems, and process pump applications. This arrangement also helps simplify panel layout because the power conversion and core control functions are handled within the same unit.
Its continuous output is rated at 7.5 kW, giving sufficient headroom for medium-power machines in routine industrial service. The incoming network may lie anywhere between 380 to 480 V, and the unit tolerates line fluctuations of ±10 %, so it can operate on supply systems with moderate variation. Because the supply connection is a Converter 3 x AC input, the controller accepts three-phase mains and rectifies it internally before modulation. During fast decelerations, the integrated built-in brake chopper routes regenerative energy to an external resistor, helping prevent DC bus overvoltage when the driven load returns energy to the controller.
The controller employs U/f curve control, matching stator voltage to frequency so motor flux remains stable across the operating speed range. Heat generated by the power stage is removed through forced air cooling, so the cabinet must provide clear airflow paths around the unit for proper thermal performance. An integrated mains filter suppresses high-frequency emissions, which helps reduce electrical noise on the supply side without requiring separate filter hardware. The unit is marked as Design Generation 1, indicating the first design generation of this RD 500 variant. This control approach is commonly used in applications where dependable speed adjustment is more important than high-dynamic servo response.
Frequently Asked Questions about RD51.1-4B-007-L-NN-FW:
Q: What is the rated power of the RD51.1-4B-007-L-NN-FW drive controller?
A: The RD51.1-4B-007-L-NN-FW provides a rated power output of 7.5 kW.
Q: What supply voltage range does the RD51.1-4B-007-L-NN-FW support?
A: This model operates with a supply voltage range between 380 and 480 V.
Q: Does the RD51.1-4B-007-L-NN-FW include a brake chopper?
A: It features a built-in brake chopper to manage braking energy during deceleration.
Q: What cooling method is used in the RD51.1-4B-007-L-NN-FW?
A: The RD51.1-4B-007-L-NN-FW uses forced air cooling for thermal management.
Q: What type of control is implemented in the RD51.1-4B-007-L-NN-FW?
A: This drive controller supports U/f curve control for motor operation.
