R911245503 (RAC 4.1-300-460-API-W1)

RAC Spindle Drive Controllers

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Phone:
1-888-551-3082

Email:
[email protected]

The Bosch Rexroth motor drive controller, MPN R911245503 (RAC 4.1-300-460-API-W1), is an AC main spindle drive controller designed for precise position and speed control in automated applications. It supports rated connection voltage of 3 x AC 400 V, 50 Hz, ±15% or 3 x AC 460 V and operates at a rated current of 300 A. The device incorporates an analogue speed command input of ±10 V and offers encoder connectivity through a high-resolution INDRAMAT encoder and additional encoder input for spindle feedback. Cooling is achieved with an internal blower and integrated ventilation components, with heat dissipation managed via air slits and a heat sink. The controller is intended for operation in environments with an optimum temperature of 40°C and requires a dry, dust-free storage condition. Connectivity is provided via a 9-pole X4 interface terminal, and the device features an incremental encoder output.

Technical Specifications

Product Type
Drive Controller

Functionality
Control motors with automated control

Speed Control
Lowest speeds with precision

Set-point Delivery
0 to 10V connection on normal NC's

Additional Encoder Input
Yes

Additional Interface
Incremental encoder

Continuous Output
93kW

Feedback Continuous Output
60kW

Cooling Device
Yes

Operational Temperature
40° C

Heat Dissipation
Through air slits and heat sink

Packaging
Carton with accessories

Transportation Recommendation
Use a vibration-dampener

Storage Recommendation
Dry and dust-free environment

Shipping
Global

Frequently Asked Questions

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Internal Product Review

The RAC 4.1-300-460-API-W1 is a Bosch Rexroth Indramat AC main spindle drive controller designed for high-demand spindle applications, featuring a rated current of 300 A and compatibility with both 400 V and 460 V three-phase AC supplies. Its high-resolution INDRAMAT encoder and additional encoder input for spindle feedback ensure precise speed regulation. With built-in internal blower cooling, this unit stands out for robust, reliable performance in industrial environments.

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 4.1-300-460-API-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.