KDA 3.3-150-3-DP0-W1 Bosch Rexroth Indramat
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MPN: R911289817
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The Bosch Rexroth Indramat KDA 3.3-150-3-DP0-W1 is a spindle drive from the KDA Spindle Drives series featuring a rated current of 150 Amps and a DC supply voltage of 300 Volts. It uses forced cooling with a mounted heatsink blower powered by a 220V AC source. The drive operates within an ambient temperature range of 5 to 45 degrees Celsius and supports a maximum installation elevation of 1000 meters above sea level.
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Product Description:
The Bosch Rexroth Indramat KDA 3.3-150-3-DP0-W1 is a spindle drive within the KDA Spindle Drives series. As a dedicated axis power module, it converts regulated DC bus energy into three-phase output for high-speed machining spindles used in CNC centers and other industrial automation equipment. The drive interfaces with an external motion controller to regulate torque and speed in real time, enabling precision metal cutting, drilling, and grinding tasks where closed-loop spindle control is required. This arrangement helps the spindle respond quickly to programmed speed changes and cutting load variations. Its mechanical footprint matches standard Indramat cabinet slots, allowing straightforward installation in compatible control cabinets.
The internal power electronics draw from a DC bus of 300 VDC, and the inverter section can deliver a continuous phase current of 150 A to the spindle motor. Thermal management relies on forced cooling; this active airflow keeps semiconductor junctions within limits while preserving compact cabinet spacing. The auxiliary fan circuit is fed from 220 V / 50–60 Hz, so it operates independently of the main DC link. Safe operation is intended between ambient temperatures of 5 to 45 °C. The device is built without an additional interface option, so its connections are limited to power, command, and diagnostic lines. Independent fan power also helps maintain airflow during operating states when the main power stage is not fully loaded.
Command values reach the drive through a digital 16-bit parallel port, supporting the fine speed resolution required for contouring applications. A secondary feedback connector accepts signals for spindle feedback or additional motor feedback, allowing flexible feedback routing without external interface modules. Installation is permitted up to 1000 m above sea level; above that altitude, cooling performance can decrease and derating may be required. A mounted heatsink blower directs exhaust to the top of the cabinet, which helps reduce air recirculation in densely populated drive racks. The unit belongs to Series 3, so it uses the parameter structure associated with that product generation.
Frequently Asked Questions about KDA 3.3-150-3-DP0-W1:
Q: What is the rated current capacity of the KDA 3.3-150-3-DP0-W1 spindle drive?
A: The KDA 3.3-150-3-DP0-W1 spindle drive is rated for a maximum current of 150 A.
Q: How is the KDA 3.3-150-3-DP0-W1 spindle drive cooled during operation?
A: Cooling for this model utilizes a forced cooling system with a mounted heatsink blower operating at 220V/50-60Hz.
Q: What is the required DC supply voltage for the KDA 3.3-150-3-DP0-W1?
A: The DC supply voltage for this spindle drive is specified as 300 VDC.
Q: What is the maximum installation elevation for the KDA 3.3-150-3-DP0-W1?
A: This spindle drive can be installed at elevations up to 1000 meters above sea level.
Q: What type of speed command value interface does the KDA 3.3-150-3-DP0-W1 utilize?
A: The speed command value input for this model is provided through a digital 16-bit parallel interface.
