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R911200525 (RD51.1-4B-022-L-NN-FW)

RD 500 Drive Controllers

Rated 4.4 stars (4 total reviews)

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The Bosch Rexroth R911200525 (RD51.1-4B-022-L-NN-FW) is a drive control unit featuring an integrated brake chopper and designed for converter applications with a three-phase AC input voltage of 380 to 480 V (±10%). Forced air cooling is utilized, suitable for systems rated at 22 kW or higher. The device supports a peak current of 72 A for one second at a 4 kHz pulse frequency and requires a minimum resistance of 11.7 Ohms for the chopper circuit. It is designed for U/f curve control, does not include additional functions, and all technical ratings, including current and frequency limits, are specified on the type plate. Installation and servicing must be performed by qualified personnel, and proper storage conditions include a clean, dry environment.

Technical Specifications

Built-in Feature
Brake Chopper

Additional Function
None

Cooling Mechanism
Forced Air Cooling

Peak Current Rating
72A at 4kHz Pulse Frequency for 1 Second

Chopper Resistance Value
Minimum 11.7 Ohms

Operating Environment
Not Underwater

Storage Condition
Dry and Clean Place

DC Link Capacitors
AL Electrolytic Capacitors

Capacitor Storage Life
2 years at not more than 40°C

Airflow Impedance
None

Power Loss
Exhibits during operation

Installation Elevation
Performance derated if exceeded

Design
Modular

Installation
In a control cabinet

Cable Distance
Minimum 20cm apart

Voltage Level
High

Personnel Requirement
Trained Personnel

Common Misspellings

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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Warranty

Indramat USA 1 Year Warranty

Repair

We offer a repair service for the RD51.1-4B-022-L-NN-FW.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

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.