RAC 2.3-250-460-D0I-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911256157
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Bosch Rexroth Indramat RAC 2.3-250-460-D0I-W1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It features a rated current of 250 Amps and supports rated connection voltages of 3 x AC 400 V at 50 Hz or 3 x AC 460 V. The controller uses an internal blower for cooling and has a 16-bit parallel digital speed command input.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The RAC 2.3-250-460-D0I-W1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat as part of the RAC Spindle Drive Controllers series. The unit coordinates high-speed machining spindles by converting line power into regulated three-phase output and by accepting digital setpoints from the numerical control. Its role in an automation cell is to maintain commanded spindle speed and deliver the required torque for metal cutting or grinding processes.
The power section is rated for operation on 3 x AC 400 V/460 V supplies with a tolerance of ±15% at 50 Hz, so the same drive can be used in European or North American plants without a transformer. At full load, the inverter delivers a continuous output of 250 A, which is suitable for large spindle motors that require high acceleration torque. Thermal energy is expelled by a built-in air blower, allowing cabinet mounting without external ducting. Control wiring lands on the X4 25-pole terminal, where enable lines, diagnostic signals, and encoder feedback are grouped for access. Speed references arrive through a 16-bit parallel word that the controller samples directly, eliminating the need for analog scaling or conversion time.
The available interfaces support spindle feedback and control functions used by the drive. An additional interface provides an incremental encoder output, which forwards real-time spindle position to the CNC or to auxiliary axes. The unit is supplied without an additional bleeder, so dynamic braking energy is handled by the standard internal resistor or by a mechanical brake. It is also built without an additional encoder input, so no secondary measurement channel is available for position replication tasks. The unit is version 3 and supports digital speed control matched to this drive design.
Frequently Asked Questions about RAC 2.3-250-460-D0I-W1:
Q: What is the rated current capacity of the RAC 2.3-250-460-D0I-W1 drive controller?
A: The RAC 2.3-250-460-D0I-W1 supports a rated current of 250 A for main spindle drive applications.
Q: What cooling method is featured on the RAC 2.3-250-460-D0I-W1?
A: This controller uses an internal blower with a built-in fan for efficient cooling.
Q: What are the supported connection voltages for the RAC 2.3-250-460-D0I-W1?
A: The device accepts a rated connection voltage of either 3 x AC 400 V at 50 Hz ±15% or 3 x AC 460 V.
Q: How does the RAC 2.3-250-460-D0I-W1 receive speed command signals?
A: It provides a digital speed command input using 16-bit parallel data.
Q: What additional interface is available on the RAC 2.3-250-460-D0I-W1 controller?
A: This model is equipped with an incremental encoder output as its additional interface.
