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R911203478 (RD51.1-5N-037-W-V1-FW)

RD 500 Drive Controllers

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The R911203478 (RD51.1-5N-037-W-V1-FW) is a Bosch Rexroth vector control converter designed for 3-phase drive applications. It features a 37 kW rated motor output and operates with a nominal connecting voltage of 3 x AC 500 V (±10%). The device incorporates a start inhibitor to prevent unintended motor startup and initiates a self-test after power-on, disabling the main contactor and power section if a fault occurs, with diagnostic information shown on the operator panel. The unit uses liquid cooling, measures 530 x 180 mm, weighs 28 kg, and supports an output frequency of 0 Hz to 250 Hz. Compliance with EN 55011 and EN 61800-3 (A1 level) is observed. Operation requires a minimum steady-state current of one-third the rated motor current. Additional features include support for a 24 V standby power supply, external connection, copy function for commissioning multiple converters, C size classification, U/f curve control, and a modular 22.5 mm grid design for stacking. The model does not include a built-in brake chopper and the firmware is factory assigned.

Technical Specifications

Rated Motor Output
37kW

System
3-Phase Drive System

Main Function
Start Inhibitor Function

External Power Supply
24V standby

Output Frequency Range
0Hz to 250Hz

Noise Immunity Level
A1 (EN 55011 / EN 61800-3)

Weight
28kg

Size
530 x 180 mm

Cooling Mechanism
Liquid Cooling

Minimum Resistance
7 Ohms

Size Class
C

Mechanical Grid Pattern
22.5mm

Relative Humidity Limit
90%

Requirement
ESC Press for Fault Acknowledgement

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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 RD51.1-5N-037-W-V1-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.