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R911256156 (RAC 2.3-250-460-D0D-W1)

RAC Spindle Drive Controllers

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The Bosch Rexroth drive controller R911256156 (RAC 2.3-250-460-D0D-W1) is designed for precise control of 2AD asynchronous main spindle motors and 1MB frameless spindle motors, providing a continuous output of 65 kW (43 kW continuous shaft output, 78 kW peak for up to 5 seconds). It supports a rated connection voltage of 3 × AC 400 V ±15% at 50 Hz or 3 × AC 460 V at 60 Hz, with a rated current of 250 A. The controller includes a built-in fan for cabinet-external air cooling and operates within a temperature range of +5 to +45°C. The device, weighing approximately 121 kg, supports a digital 16-bit parallel position set-point interface with X4, 25-pole terminal, does not include additional bleeder or encoder input, and is protected to IP10, suitable for installation up to 1000 m above sea level.

Technical Specifications

Control Type
Drive Controller

Continuous Output
65 kW

Rated Connection Voltage
AC 460V

Power Source
AC 3 × 400-460V

Operating Frequency
50/60 Hz

Tolerance
±15%

Key Features
Broad Speed Range, Stiffness, Continuous Power

Continuous Regenerated Output
43 kW

Peak Regenerated Output
78 kW

Maximum Peak Duration
5 seconds

Weight
121 kg

Cooling System
Built-in Fan

Speed Set-Point
16-bit Parallel Digital

Additional Bleeder Resistor
No

Protection Class
IP10

Operating Temperature
5 to 45 ºC

Maximum Temperature
55 ºC

Maximum Installation Height
1000 m

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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 RAC 2.3-250-460-D0D-W1.

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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.