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R911256140 (RAC 2.3-250-380-A00-Z1)

RAC Spindle Drive Controllers

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The Bosch MPN R911256140 (RAC 2.3-250-380-A00-Z1) is a RAC 2 series AC main spindle drive controller engineered for integration with 2AD main spindle motors in high performance applications requiring c-axis control. The unit features an internal blower for cooling, an additional bleeder, and supports a rated current of 250 A at a connection voltage of 3 x AC 400 V, 50-60 Hz. It includes a control panel, an analog speed command interface (+/-10 V), a 9-pole interface terminal (X4), and direct current braking for rapid spindle stop. The controller is configurable with the AS programming module.

Technical Specifications

Current Type
250 Amps

Connection Voltage
3x400 Volts AC

Compatible Motor
2AD Main Spindle Motor

Interface
Analog Interface for Speed Command Values

Power Supply
Three-Phase Supply Direct Connection

Compatibility
Rexroth Frameless Spindle Motors

Programming
Text-Based via AS Programming Module.

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The RAC 2.3-250-380-A00-Z1 enhances thermal management with an additional bleeder while maintaining precise analog speed control. It delivers dependable performance for operations requiring long-term stability and reliability.

1620 Old Apex Road
Cary, NC 27513, USA

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International: 1-919-443-0207

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Indramat USA 1 Year Warranty

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We offer a repair service for the RAC 2.3-250-380-A00-Z1.

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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.