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R911255177 (RAC 2.2-250-460-LP0-W1)

RAC Spindle Drive Controllers

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Expedited Lead Times on Select Parts
1 Year Warranty Included
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1-888-551-3082

Email:
[email protected]

The Bosch Rexroth MPN R911255177 (RAC 2.2-250-460-LP0-W1) is an AC main spindle drive controller designed for digital regulation of Indramat asynchronous and frameless spindle motors in CNC machine tools. It features an integrated main switch, emergency halt, internal blower for cooling, and a heatsink for heat dissipation. The controller returns braking energy to the three-phase supply and allows programming modules with stored motor parameters. Rated at 250 A, it supports 3 x AC 400 V (50 Hz, ±15%) or 3 x AC 460 V, and uses a SERCOS speed command interface. Additional features include spindle feedback via high-resolution encoder and optical waveguide terminal X4. It operates within 5–45°C, up to 70% humidity, has IP10 protection (EN 60529), and weighs 121 kg.

Technical Specifications

RAC 2 Main Spindle Drive Controller
Yes

Integrated Mains Switch
Yes

Emergency Stop Switch
Yes

Energy Re-feed
Yes

Heatsink
Yes

Air Shaft
Yes

Cooling Mechanism
Yes

Humidity Tolerance
Class F as per DIN 40 040 standards

Max Relative Humidity
70%

Operating Temperature
5 degree C to 45 degree C

Weight
121 kg

Mounting Frame Weight
2 kg

Protection
Class IP 10 according to EN 60 529

Rated Current
400 A

Supply Voltage
400 V at 50 Hz or 460 V at 60 Hz

Interface
SERCOS interface

Global Shipping
Yes

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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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Warranty

Indramat USA 1 Year Warranty

Repair

We offer a repair service for the RAC 2.2-250-460-LP0-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.