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R911200899 (RD52.1-4N-090-L-NN-FW)

RD 500 Drive Controllers

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The Bosch Rexroth R911200899 (RD52.1-4N-090-L-NN-FW) is a frequency converter designed for integration with RD 500 drive systems. It features field-oriented regulation and supports a nominal three-phase AC voltage range of 380V to 480V, with a ±10% tolerance. Forced air cooling is utilized, and the unit provides a rated power output of 90 kW. Weighing 74 kg and classified as size E, this converter offers flexible pulse frequency adjustment and is intended for use with approved firmware. The design is modular for cabinet mounting and includes radio interference suppression filters and line reactors for harmonic mitigation. The enclosure has an IP20 protection rating, preventing solid objects greater than 12 mm from entering.

Technical Specifications

Component Type
Frequency Converter

Part of
RD 500 Drive System

Regulation Mode
Field-Oriented Regulation

Cooling Mode
Forced Air Cooling

Required Voltage
3-Phase AC 380-480V +/-10%

Power Rating
90kW

Weight
74kg

Size Class
E

Pulse Frequency
Variable

Design
Modular

Mounting
Control Cabinets Mounting

Mechanical Grid Pattern
22.5mm

Radio Interference Suppression
Integrated

Line Reactors
Integrated

IP Rating
IP 20 according to EN 60529

Shipping
Global

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1620 Old Apex Road
Cary, NC 27513, USA

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International: 1-919-443-0207

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We offer a repair service for the RD52.1-4N-090-L-NN-FW.

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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.