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R911200139 (RS51.1-4G-050-L-NN-FW)

RD 500 Drive Controllers

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The R911200139 (RS51.1-4G-050-L-NN-FW) is a drive converter designed for high-speed grinding spindle control within industrial environments. It features a rated power of 50 kVA and can deliver a peak current of 104 A for one minute, with a nominal connecting voltage of 3 x AC 380-480 V and a nominal current draw of 60 A. The unit includes a built-in brake chopper and resistor for voltage adjustment under variable motor loads. Output frequency reaches up to 1000 Hz. The device is cooled via forced-air (external air), measures 770 mm in height and 405 mm in width, and supports operation at altitudes up to 1000 meters above sea level. Its IP20 rating indicates resistance to dust ingress.

Technical Specifications

Product Type
Drive Converter

Power Output
50 kW

Peak Current (for 1 minute)
104 A

Nominal Current
60 A

Output Frequency
1000 Hz

Cooling
Forced-air cooling

Peak Output Power (for 1 minute)
63 kW

Continuous Output Power
41 kVA

Dimensions
770 mm x 405 mm

Voltage
380 - 480 V AC (10% tolerance)

Cooling Airflow
0.4 g/m3

IP Certification
IP20

Brake Chopper Minimum Resistance
9 ohms

Continuous Output of Brake Chopper
40 kW

Optimal Operating Altitude
1000 meters above sea level

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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-050-L-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.