R911201254 (RS51.1-4G-031-S-NN-FW)

Name: R911201254 (RS51.1-4G-031-S-NN-FW)
Brand: Indramat Drives
SKU: RS51.1-4G-031-S-NN-FW
Price: 415.00 USD

RD 500 Drive Controllers

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The Rexroth Indramat controller, MPN R911201254 (RS51.1-4G-031-S-NN-FW), is an industrial control unit intended for real-time regulation of synchronous and induction motors, specifically suited for high-speed grinding spindle applications. It operates on a three-phase 380–480 V AC supply, with a rated power output of 31 kVA and a current requirement of 56 A, producing about 3.5 mA of leakage current. The enclosure has an IP20 rating and requires additional external IP56 protection. The device provides a built-in brake chopper and resistor, heat dissipation by natural convection, and requires an 80 mm installation clearance. User input is via a four-line display and six pressure-sensitive keys. Additional functions are not equipped.