KDA 3.1-150-3-AQ0-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.1-150-3-AQ0-W1 is a spindle drive from the KDA Spindle Drives series with a rated current of 150 Amps and operates on a DC supply voltage of 300 VDC. It uses forced cooling with a mounted heatsink blower powered by a 220V AC source, and is designed to function within an ambient temperature range of 5 to 45 degrees Celsius at elevations up to 1000 meters above sea level.
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Product Description:
The KDA 3.1-150-3-AQ0-W1 spindle drive is manufactured by Bosch Rexroth Indramat and belongs to the KDA Spindle Drives series. It is used in industrial automation to regulate spindle motor speed and torque in machining centers, grinders, and similar machinery. The unit converts a controlled DC link voltage into a three-phase output that is suitable for high-speed spindle loads, helping the motor respond accurately to changing process demands during operation.
Its DC link is rated at 300 VDC, which sets the intermediate power level for the internal inverter. Continuous armature demand can be supplied up to 150 A, allowing the drive to support large-frame spindle motors during acceleration and sustained running conditions. Thermal management relies on a mounted heat sink blower that directs air across the aluminum fins, and forced cooling helps keep the power semiconductors within their allowable temperature range. The blower itself operates from 220 V, 50/60 Hz, so airflow remains available independently of the main DC bus. No additional interface option is fitted, which keeps the cabinet arrangement more straightforward.
The permitted ambient operating range is 5 °C to 45 °C, making the unit suitable for typical factory environments without external chilling equipment. Installation altitude is limited to 1000 m above sea level, because higher elevations reduce air density and can lower cooling effectiveness. Internally, the drive uses version 3 of the series. Motion commands are accepted through an analog speed reference, which allows direct connection to legacy CNC systems that provide ±10 V control signals. This control method is well suited to applications that require straightforward speed command integration without a separate digital interface. Wake Industrial offers a one-year warranty on this KDA spindle drive.
Frequently Asked Questions about KDA 3.1-150-3-AQ0-W1:
Q: What is the rated current for the KDA 3.1-150-3-AQ0-W1 spindle drive?
A: The KDA 3.1-150-3-AQ0-W1 spindle drive operates with a rated current of 150 A.
Q: What cooling method does the KDA 3.1-150-3-AQ0-W1 utilize?
A: This drive uses a mounted heatsink blower for forced cooling.
Q: What power supply is required for the heatsink blower on the KDA 3.1-150-3-AQ0-W1?
A: The supported AC source for the heatsink blower is 220V at 50-60Hz.
Q: What is the highest installation altitude for proper operation of the KDA 3.1-150-3-AQ0-W1?
A: The maximum permitted installation elevation is 1000 meters above sea level.
Q: What type of speed command input does the KDA 3.1-150-3-AQ0-W1 accept?
A: This spindle drive accepts analogue signals for its speed command value.
