KDA 2.1-150-3-DQ0-U1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Bosch Rexroth Indramat KDA 2.1-150-3-DQ0-U1 spindle drive is part of the KDA Spindle Drives series and operates with a rated current of 150 Amps and a DC supply voltage of 300 VDC. The unit features forced cooling with a mounted heatsink blower that runs on 115V and 50-60Hz, and supports a digital, 16-bit parallel speed command value. It is designed for operation in ambient temperatures from 5 to 45 degrees Celsius and can be installed up to 1000 meters above sea level.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The KDA 2.1-150-3-DQ0-U1 spindle drive is produced by Bosch Rexroth Indramat as part of the KDA Spindle Drives series. Designed to regulate high-speed machining spindles, the unit converts controlled DC bus energy into the three-phase output required by induction or synchronous motors in CNC systems. Its internal control electronics accept digital speed references from the machine controller and adjust motor power accordingly. This allows the drive to control axis rotation and support tool cutting in automated production cells.
In operation, the drive provides a continuous output current of 150 A, a level suited to medium-to-large spindle motors where rapid acceleration and consistent torque are critical. The power stage is fed from a 300 VDC intermediate circuit, which supports multi-axis installations that share a common supply. Rotational demand reaches the drive through a digital (16-bit parallel) speed command, allowing fine resolution across the full speed range. Thermal energy generated in the power semiconductors is removed by forced cooling, which helps maintain predictable junction temperatures. A separate heatsink fan is energized from a 115 V/50–60 Hz source so blower loading does not burden the DC bus.
The drive can operate between 5 to 45 °C, covering typical factory conditions without extra conditioning. Installation is permitted up to 1000 m above sea level before power derating becomes necessary. The heatsink assembly uses a mounted heatsink blower that is factory-assembled to the rear of the drive, so only clearance and the specified fan supply are needed. There is no additional interface option on the control boards, so wiring is limited to the primary speed and feedback connectors. This keeps the connection layout straightforward inside standard spindle-drive cabinets.
Frequently Asked Questions about KDA 2.1-150-3-DQ0-U1:
Q: What is the rated current of the KDA 2.1-150-3-DQ0-U1 spindle drive?
A: The KDA 2.1-150-3-DQ0-U1 spindle drive is rated for a current of 150 A.
Q: How is the KDA 2.1-150-3-DQ0-U1 spindle drive cooled?
A: This model uses forced cooling with a mounted heatsink blower for thermal management.
Q: What is the required DC supply voltage for the KDA 2.1-150-3-DQ0-U1?
A: The KDA 2.1-150-3-DQ0-U1 requires a DC supply voltage of 300 VDC for operation.
Q: What type of speed command input is supported by the KDA 2.1-150-3-DQ0-U1?
A: This spindle drive supports digital speed command values via a 16-bit parallel input.
Q: What is the maximum allowable installation elevation for the KDA 2.1-150-3-DQ0-U1?
A: The maximum installation elevation for this model is 1000 meters above sea level.
