KDA 3.3-150-3-LP0-W1 Bosch Rexroth Indramat
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MPN: R911267198
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The Bosch Rexroth Indramat KDA 3.3-150-3-LP0-W1 is a spindle drive from the KDA Spindle Drives series. It features a rated current of 150 Amps and operates with a DC supply voltage of 300 VDC. The drive uses forced cooling with a mounted heatsink blower and has a second encoder input for spindle or additional motor feedback.
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Product Description:
The KDA 3.3-150-3-LP0-W1 belongs to the Bosch Rexroth Indramat KDA Spindle Drives series and serves as a regulated power module for high-speed machine-tool spindles. It converts DC-bus power into controlled three-phase output so a CNC controller can regulate spindle speed with precision during cutting operations. This type of drive is suited to machining centers that need stable rotational control during drilling, milling, and finishing passes. It is intended for applications where the spindle must follow commanded speed changes quickly without losing control during heavy material removal.
The drive's heat sink blower uses an auxiliary supply of 220 V, 50–60 Hz, allowing direct connection to common industrial mains. Internally, the power section operates from a 300 VDC link, and the output stage can deliver up to 150 A of continuous current for demanding spindle loads. Velocity commands are transferred through the SERCOS interface, which supports synchronous digital communication with the control system and avoids drift associated with analog reference signals. The permitted ambient operating range is 5 °C to 45 °C, which suits enclosed machine cabinets in normal shop conditions. The electronics card does not include an additional interface option.
Heat is removed by forced cooling with a mounted heat sink blower, which helps maintain acceptable semiconductor temperatures during sustained high-speed operation. Installation is permitted up to 1000 m above sea level, where airflow remains suitable for the cooling method used by the unit. A second encoder input is available when the application requires feedback from an additional sensor for spindle orientation or coordinated drive arrangements. The unit is generation 3 and is supplied without expansion slots for auxiliary fieldbuses.
Frequently Asked Questions about KDA 3.3-150-3-LP0-W1:
Q: What type of cooling does the KDA 3.3-150-3-LP0-W1 spindle drive use?
A: The KDA 3.3-150-3-LP0-W1 spindle drive uses a mounted heatsink blower for forced cooling.
Q: What is the allowed ambient temperature range for the KDA 3.3-150-3-LP0-W1?
A: This model is designed to operate at ambient temperatures between 5 and 45 degrees Celsius.
Q: What is the rated current of the KDA 3.3-150-3-LP0-W1?
A: The rated current for this spindle drive is 150 A.
Q: What is the input DC supply voltage for the KDA 3.3-150-3-LP0-W1 spindle drive?
A: The KDA 3.3-150-3-LP0-W1 accepts a DC supply voltage of 300 VDC.
Q: How is the speed command value input for the KDA 3.3-150-3-LP0-W1?
A: This spindle drive accepts speed command values through a SERCOS Interface.
