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R911256096 (RAC 3.5-150-460-API-Z1-220)

RAC Spindle Drive Controllers

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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The Bosch Rexroth R911256096 (RAC 3.5-150-460-API-Z1-220) is an AC main spindle drive controller designed for use in demanding motion control applications. It supports rated connection voltages of 3 x AC 400 V at 50 Hz (±15%) or 3 x AC 460 V, with control electronics rated at AC 230 V, 50-60 Hz. The unit delivers a rated current of 150 A and incorporates an integrated emergency-stop and main contactor system. It includes an additional bleeder, incremental encoder output, and an additional encoder input for spindle feedback. High-resolution INDRAMAT encoder support enables rotor position recognition up to 1/4,000,000th resolution. Cooling is provided by an internal blower or built-in fan. The drive accepts analogue speed commands of ±10 V and is equipped with an X4, 9-pole interface terminal. Mounting kit with flanges and screws is included; hose cooling accessories are not included.

Technical Specifications

Current Rating
150A

Voltage Rating Control Electronics
AC 220 V / 50 ... 60 Hz 220

Voltage Rating Power Electronics
3 x AC 380 ... 460V; 50 ... 60Hz

Integrated Safety Features
Emergency-Stop Switch, Main contactors

Interface
Standard CNC controls

Cooling Method
Inbuilt Fan

Provided Accessories
Mechanical Accessories Kit

Additional Required Items
Hose Cooling.

Frequently Asked Questions

Common Misspellings

Internal Product Review

The RAC 3.5-150-460-API-Z1-220 is an AC main spindle drive controller from Bosch Rexroth Indramat, featuring a robust 150 A rated current and compatibility with 3 x AC 400 V or 460 V input. Internal blower cooling and an additional bleeder ensure stable thermal management during demanding operations. This model stands out for its high-resolution INDRAMAT encoder support and integrated spindle feedback capabilities.

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the RAC 3.5-150-460-API-Z1-220.
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