RS51.1-4G-014-V-V1-FW Bosch Rexroth Indramat
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MPN: R911201186
Ask for AvailabilityThe Bosch Rexroth Indramat RS51.1-4G-014-V-V1-FW is a basic drive from the RD 500 Drive Controllers series. It features a built-in brake chopper and resistor, with integrated mains filter and U/f curve control. This drive has a rated power of 14 kVA and operates on a 3-phase AC supply with a voltage range of 380 to 480 V.
Internal Product Review
The RS51.1-4G-014-V-V1-FW is a Bosch Rexroth basic drive from the RD 500 Drive Controllers series with U/f curve control and 14 kVA rated power. Integrated mains filtering and a built-in brake chopper with resistor support clean installation and dependable deceleration behavior. Converter 3 x AC input across 380 to 480 V makes this unit a strong fit for standard industrial drive applications.
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Product Description:
Bosch Rexroth Indramat manufactures the RS51.1-4G-014-V-V1-FW, a basic drive within the RD 500 Drive Controllers series. Acting as the power and control interface for three-phase induction motors, the unit converts fixed incoming voltage into a variable output that matches load demands. By combining scalar regulation and protective hardware in one frame, the drive supports conveyor lines, packaging equipment, and other automated stations that need stable but adjustable motor speed. This layout helps keep the installation compact while still giving the motor controlled acceleration and running behavior during normal process changes.
The power stage accepts a three-phase input of 380 to 480 V and is classified as a Converter 3 x AC device, so it can connect directly to standard factory distribution systems. Within this range, a line variation of ±10 % is allowed without derating, which helps the drive remain usable where supply conditions are not perfectly constant. The drive delivers a continuous apparent output of 14 kVA, providing enough capacity for medium-duty transport, pump, and feeder applications. Speed adjustment uses U/f curve control, which keeps the voltage-to-frequency relationship consistent as motor speed changes. Because this method works without encoder feedback, it suits general-purpose installations that need reliable open-loop speed control rather than high-end positioning.
For dynamic braking events, the drive includes a built-in brake chopper and resistor, allowing regenerated energy to be dissipated inside the unit instead of being sent back to the supply. An integrated line filter reduces conducted emissions, which can simplify panel integration in electrically busy systems. Control electronics can remain active during plant shutdowns through the 24 V standby power input, so diagnostics and communication functions can stay available when the main power section is off. The unit is identified as Design generation 1, which marks the product platform used for this version of the controller.