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

Name: R911255177 (RAC 2.2-250-460-LP0-W1)
Brand: Indramat Drives
SKU: RAC 2.2-250-460-LP0-W1
Price: 711.00 USD
Availability: InStock

RAC Spindle Drive Controllers

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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

Frequently Asked Questions

What is the rated connection voltage of the RAC 2.2-250-460-LP0-W1?

The rated connection voltage is 3 × AC 400 V, 50 Hz, ±15% or 3 × AC 460 V for the RAC 2.2-250-460-LP0-W1.

Does the RAC 2.2-250-460-LP0-W1 have an additional encoder input?

Yes, the RAC 2.2-250-460-LP0-W1 includes an additional encoder input for spindle feedback.

What is the encoder type of the RAC 2.2-250-460-LP0-W1?

The encoder type is high-resolution INDRAMAT encoder (~) for the RAC 2.2-250-460-LP0-W1.

What is the rated current of the RAC 2.2-250-460-LP0-W1?

The rated current is 250 A for the RAC 2.2-250-460-LP0-W1.

What type of speed command does the RAC 2.2-250-460-LP0-W1 use?

The speed command type is SERCOS interface for the RAC 2.2-250-460-LP0-W1.

Common Misspellings

RAC 22250460LP0W1

RAC 2 2 250 460 LP0 W1

Rac 2.2-250-460-lp0-w1

Internal Product Review

The RAC 2.2-250-460-LP0-W1 combines high-resolution encoder input with SERCOS interface control for responsive and precise spindle movements. Its robust 250 A rating makes it ideal for demanding automation tasks.