R911251518 (RAC 4.1-300-460-A0I-W1)

RAC Spindle Drive Controllers

In Stock, Ships 2-3 Days

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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

Phone:
1-888-551-3082

Email:
[email protected]

The R911251518 (RAC 4.1-300-460-A0I-W1) is a Bosch Rexroth AC main spindle drive controller engineered for numerical control of machine tools, providing precise motor regulation and supporting use of the main spindle as a C-axis in automatic control circuits. The unit operates at a rated connection voltage of 3 x AC 400 V, 50 Hz (±15%) or 3 x AC 460 V, with a rated current of 300 A. Cooling is achieved via an internal blower or built-in fan, suitable for installation in control cabinets. The device includes an incremental encoder output (no additional encoder input), analogue speed command input (±10 V), and is equipped with interface terminal X4 (9 poles). The assembly weighs 1.7 kg and does not include an additional bleeder. It requires suitable housing to protect against water and penetration and is intended for use in varied climates.

Technical Specifications

Function
Control of numerical controlled machine tools

Built-In Cooling System
Yes

Weight
1.7 kg

Available From
Indramat

Interface
Incremental encoder output

Continuous Output
93kW

Feedback Continuous Output
60 kW

Additional Accessories
Assembly frame

Assembly Frame Weight
4kg

Climatic Operating Conditions
Warm, Moderate, Cold

Protection from Objects
Objects 50 mm in diameter or more

Shipping
Global

Frequently Asked Questions

Common Misspellings

Internal Product Review

The RAC 4.1-300-460-A0I-W1 is an AC main spindle drive controller from Bosch Rexroth Indramat, designed for high-power applications with a rated current of 300 A and operation on 3 x AC 400 V or 460 V supply. Integrated internal blower cooling ensures reliable thermal management, and the incremental encoder output supports precise speed feedback. Overall, the robust design and high current rating make this controller ideal for demanding spindle drive tasks.

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]

Shipping & Payment Options

Warranty

Indramat USA 1 Year Warranty

Repair

We offer a repair service for the RAC 4.1-300-460-A0I-W1.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells unused surplus 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.