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R911256157 (RAC 2.3-250-460-D0I-W1)

RAC Spindle Drive Controllers

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The Bosch Rexroth MPN R911256157 (RAC 2.3-250-460-D0I-W1) is an industrial AC main spindle drive controller designed for operation with a 3-phase AC power supply at 400–460 V and 50/60 Hz. The unit is rated for 250 A and provides a continuous controller output of 65 kW. It features a digital 16-bit parallel speed set-point interface that connects to a PLC, but does not support an additional encoder input or an external bleeder resistor. Protection class is IP10 with DIN 40 040 humidity category F, and it operates within ambient temperatures of +5 to +45 °C. The controller has an internal cooling blower and an interface terminal X4 (25 poles), making it suitable for managing 2AD asynchronous and 1MD frameless spindle motors. Weight is approximately 121 kg.

Technical Specifications

Operating Frequency
50/60 Hz

Tolerance
plus/minus 15%

Operational Current
400 A

Continuous Controller Output
65 kW

Parallel Speed Set-point
16-bit

Humidity Category
F

Ideal Operating Temperature
+5 to +45 ͦC

Weight
121 kg

Cooling System
Built-in fan using the control cabinet outside air

Peak Output
78 kW

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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-D0I-W1.

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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.