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

Name: R911251518 (RAC 4.1-300-460-A0I-W1)
Brand: Indramat Drives
SKU: RAC 4.1-300-460-A0I-W1
Price: 500.00 USD
Availability: InStock

RAC Spindle Drive Controllers

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Phone:
1-888-551-3082

Email:
sales@indramat-usa.com

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

How is the RAC 4.1-300-460-A0I-W1 spindle drive controller cooled during operation?

The RAC 4.1-300-460-A0I-W1 is equipped with internal blower and built-in fan cooling for temperature management.

What rated connection voltage is supported by the RAC 4.1-300-460-A0I-W1 spindle drive controller?

This spindle drive controller supports a rated connection voltage of 3 x AC 400 V, 50 Hz, +/-15% or 3 x AC 460 V.

What type of additional interface does the RAC 4.1-300-460-A0I-W1 provide?

The RAC 4.1-300-460-A0I-W1 features an incremental encoder output interface for feedback functionality.

What is the rated current output of the RAC 4.1-300-460-A0I-W1 spindle drive controller?

This model delivers a rated current of 300 A during operation, suitable for demanding applications.

What type of speed command input does the RAC 4.1-300-460-A0I-W1 spindle drive controller accept?

The RAC 4.1-300-460-A0I-W1 receives speed command signals via an analogue input of +/- 10 V.

Common Misspellings

RAC 41300460A0IW1

RAC 4 1 300 460 A0I W1

Rac 4.1-300-460-a0I-w1

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.