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R911256101 (RAC 3.5-150-460-A0S-W1-220)

RAC Spindle Drive Controllers

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The Bosch Rexroth R911256101 (RAC 3.5-150-460-A0S-W1-220) is an AC main spindle drive controller from the RAC series, designed for numerically controlled machine tools. It operates at a rated current of 150 A with a rated connection voltage of 3 x AC 400 V, 50 Hz, ±15% or 3 x AC 460 V, and a control electronics connection of AC 230 V, 50-60 Hz. The controller features an internal position control loop for independent spindle positioning, an analogue speed command input of ±10 V, and offers up to 1/4,000,000th revolution resolution. It is equipped with a built-in cooling fan, a serial RS 232-C interface for parameter management, and conforms to DIN VDE 0160 standards. Rated output shaft power ranges from 10 to 30 kW. Operation is specified for temperatures up to 45°C (safe up to 55°C) and altitudes up to 1000 m. The IP 10 protection level provides basic ingress protection. No additional bleeder or encoder input is present. Version 5, series 3, interface terminal X4 (9 poles) is implemented.

Technical Specifications

Product Type
Main Spindle Drive Controller

Current Type
150A

Voltage
3 x AC 380 and 460V

Ideal Operating Temperature
45 degrees Celsius

Maximum Operating Temperature
55 degrees Celsius

Maximum Operating Altitude
1000 meters

Revolution Resolution
1/4 000 000th

Speed
+/- 10 Volts

Operating Frequency
50/60Hz

Emergency Circuit Provisions
Yes

Additional Interface
Yes

Power at Motor Output Shaft
10 to 30KW

Protection Class
IP 10

Safety Standards
DIN VDE 0160

In-built Cooling Fan
Yes

Special Plug and Socket
Yes

Heat Emission
Yes

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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

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Indramat USA 1 Year Warranty

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We offer a repair service for the RAC 3.5-150-460-A0S-W1-220.

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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.