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R911201364 (RS51.1-4G-050-T-NN-FW)

RD 500 Drive Controllers

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The R911201364 (RS51.1-4G-050-T-NN-FW) is a drive converter by Bosch Rexroth intended for high-speed grinding spindles. It operates with a 3-phase AC input voltage of 380 to 480 V (±10% tolerance) and provides a power output up to 50 kVA within a frequency range of 0–1000 Hz. The device draws a nominal current of 66 A and a rated current of 83 A, supporting a continuous output of 41 kVA. It incorporates a built-in brake chopper and resistor for over-voltage management, features A1 class radio interference suppression, and is housed in an IP20 enclosure. Designed for operation between 0 and +40 °C, it requires 0.4 m³/s of cooling air and weighs 80 kg.

Technical Specifications

Product Type
Drive Converter

Application
High-speed grinding spindles

Input
3-phase AC 380 - 480 V

Tolerance
±10%

Rated Output
50 kVA

Frequency Range
0 - 1000 Hz

Nominal Current
66 A

Rated Current
83 A

Continuous Output
41 kVA

Environmental Class
3KE

Operating Temperature
0 to +40 degrees Celsius

Cooling Requirement
0.4 cubic meters of air per second

Radio Interference Suppression
Class A1

Enclosure Protection
IP 20

Weight
80 kg

Brake Resistor Continuous Braking Power
1.2 kW

Brake Resistor Resistance Value
10 Ohm

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1620 Old Apex Road
Cary, NC 27513, USA

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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.