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

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.

Technical Specifications

Primary Use
Control of synchronous and induction motors

Protection Class
IP20

Recommended Additional Protection
IP56

Electrical Connector Type
Three-phase

Rated Current
56 amperes

Leakage Current
3.5 milliamperes

Heat Control
Natural Convection

Required Clearance
80 millimeters

Nominal Connecting Voltage
380-480 volts

Rated Power Output
31 kilowatts

Shipping
Global

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1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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We offer a repair service for the RS51.1-4G-031-S-NN-FW.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.