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R911203041 (RS51.1-4G-031-U-NN-FW)

RD 500 Drive Controllers

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The R911203041 (RS51.1-4G-031-U-NN-FW) is a Bosch Rexroth drive control device designed for integration into three-phase drive systems. It features modular hardware and software, rear-cooled power section, and is compliant with EN 50082-2 noise immunity standards. Key specifications include a nominal connecting voltage of 3 x AC 380-480 V, a rated power output of 31 kVA, and a built-in brake chopper and resistor. The device is optimized for high-speed grinding spindle applications and includes a user panel with a copy function. Operation is suitable up to 1,000 m above sea level, and only qualified personnel should handle the unit due to live terminals. The design establishes a direct connection between protective earth and reference ground, intended for environments free of dust, with considerations for heat dissipation and storage limits for AL electrolytic capacitors.

Technical Specifications

Safety Regulations Compliance
Yes

Additional Function Support
No

System Requirement
Three-phase drive

Design
Modular hardware and software

Cooling Action Supported
Rear

Noise Immunity Compliance
EN 50082-2

Structural Modifications
Not Allowed

Pre-commissioning Requirement
Programming

Temperature Variation Tolerance
Low

Maximum Temperature Tolerance
Low

Heat Generation
Yes

Maximum Installation Elevation
1,000m

Prerequisite for Operation
Trained Personnel

Direct Connection
Between protective earth and reference ground

Operating Environment
Dust-free area

Shipping
Available

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1620 Old Apex Road
Cary, NC 27513, USA

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International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

Repair

We offer a repair service for the RS51.1-4G-031-U-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.