KDA3.2-100-3-A00-W1 Bosch Rexroth Indramat
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MPN: R911228167
The Bosch Rexroth Indramat KDA3.2-100-3-A00-W1 is a spindle drive from the KDA Spindle Drives series. It is rated for 100 Amps current, operates with a DC bus voltage of 300 V, and uses forced cooling with a blower supply voltage of 220 VAC. The drive features a vertical mounting orientation, a 15-pin motor feedback connector, and provides IP10 degree of protection.
Internal Product Review
The KDA3.2-100-3-A00-W1 is a spindle drive that stands out for a 100 A rated current and 300 V DC bus capability. Forced cooling with 32 l/s airflow supports stable thermal behavior in demanding spindle applications. Vertical mounting and an analog ±10 V speed command make the drive a very practical choice for precise machine control.
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Product Description:
The KDA3.2-100-3-A00-W1 belongs to the KDA Spindle Drives series produced by Bosch Rexroth Indramat. As a spindle drive, it regulates three-phase induction or synchronous spindle motors in machining centers, supplying controlled power while monitoring feedback signals to maintain cutting speed stability. Integrated power electronics, a dedicated motor feedback connector, and an NC interface let the unit exchange position and velocity data with the machine controller, making it a core component in closed-loop industrial automation.
This drive delivers a continuous output of 100 A from a shared intermediate circuit maintained at 300 V DC. An internal fan fed with 220 VAC forces cooling air through the enclosure; at a flow of 32 l/s and a static pressure of 30 Pa, thermal load is removed before components reach critical temperature. Forced-air cooling is supported by a blower mounting space and by vertical fins molded into the housing. Electrical terminations follow set torque limits of 3 Nm on the DC bus bars and 5 Nm on the M6 motor terminals, while a 10 mm² ground conductor provides fault current continuity. The spindle feedback cable mates with a 15-pin connector, and motion commands arrive through a 37-pin NC interface. No auxiliary interface or second encoder input is provided.
The housing carries an IP10 rating, giving finger protection for cabinet-mounted installations that operate in workshops held between 5 to 45 °C. Humidity is handled under classification F, and reliable operation is supported up to 1,000 m above sea level. The unit is intended for vertical mounting so that convection assists the forced-air path. The speed command channel accepts Analog ±10 V velocity reference signals, allowing the CNC to scale spindle speed without digital conversion delays.
