RS51.1-4G-014-L-NN-FW

RD 500 Drive Controllers

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The Bosch Rexroth Indramat RS51.1-4G-014-L-NN-FW is a high-performance module in the RD 500 Drive Controllers series engineered for demanding industrial applications. It operates as a Drive control device with a Nominal Voltage 3×AC 380-480 V input and delivers 14 kVA Rated Power to high-speed grinding spindles. Designed for robust operation, the unit integrates a Built-in Brake Chopper and Built-in Resistor for energy return and dynamic braking. The Forced-air cooling mechanism maintains optimal thermal conditions even under continuous load.

The controller features an output frequency range of 0 to 2000 Hz and supports a Maximum Current 29 A (60 s) peak while sustaining a Rated Current 23 A for continuous operation. Protection to IP20 standards safeguards internal electronics, and the device’s environmental class 3K3 rating ensures reliable function in dust-laden or humid enclosures. Measuring 560 mm height by 270 mm breadth and weighing 33 kg, the compact footprint simplifies cabinet integration without sacrificing performance.

Modularity is at the core of this design: firmware and ancillary components such as contactors, relays, or solenoid valves are ordered separately to reduce downtime during maintenance. The controller should be installed in a closed cabinet with appropriate noise suppression measures such as RC elements or diodes on auxiliary circuits. Bosch Rexroth Indramat backs every RS51.1-4G-014-L-NN-FW with a one-year warranty and global shipping support, ensuring immediate availability and peace of mind for OEMs and end users alike.