RS51.1-4G-003-L-V1-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: R911200263
Ask for AvailabilityThe Bosch Rexroth Indramat RS51.1-4G-003-L-V1-FW is a basic drive from the RD 500 Drive Controllers series with a rated power of 3 kVA and supports a voltage range of 380 to 480 volts. It features built-in brake chopper and resistor, U/f curve control, and uses forced air cooling. The drive has an integrated mains filter and allows 24 V external stand-by power.
Internal Product Review
The RS51.1-4G-003-L-V1-FW is a basic drive that delivers smooth U/f curve control for dependable variable-speed applications. A built-in brake chopper and resistor, combined with 380 to 480 V input capability, gives the drive strong braking performance and straightforward integration on standard three-phase systems.
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Product Description:
The RS51.1-4G-003-L-V1-FW is manufactured by Bosch Rexroth Indramat and belongs to the RD 500 Drive Controllers series. It is classified as a basic drive and serves as the power conversion element in automation panels for variable-speed operation of standard three-phase induction motors. This type of controller is commonly used in material-handling and process equipment where stable speed adjustment is required for everyday duty. Rather than serving as a high-performance servo, it is intended for dependable motor control in general industrial systems. It is suited to installations that need practical speed regulation without the complexity of servo positioning.
This model uses a three-phase AC input stage and accepts line voltages from 380 to 480 V. Within that range, the device remains functional even if the incoming supply varies by ±10 %, which helps it tolerate moderate line fluctuations without interrupting operation. Its apparent output is rated at 3 kVA, making it suitable for light-to-medium mechanical loads on pumps, fans, and conveyors. Speed adjustment is carried out through U/f curve control, which keeps the stator flux nearly constant by linking output voltage to frequency in proportion to motor demand. This control method is a practical choice when the application needs straightforward speed control instead of closed-loop vector performance.
The unit uses a built-in brake chopper and resistor to dissipate regenerated energy during fast deceleration, so external dump hardware is not required. Heat from the power semiconductors is removed by forced air cooling, which supports continuous operation at the stated power level and helps maintain internal temperature control. An integrated line filter helps limit conducted interference so the controller can share a cabinet with sensitive control electronics. For standby control needs, the unit supports 24 V standby power from an external source, allowing logic and I/O functions to remain active when the main power section is off. The controller uses a generation 1 layout.
