KDA 3.1-150-3-A0S-W1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat KDA 3.1-150-3-A0S-W1 is a spindle drive from the KDA Spindle Drives series, with a rated current of 150 Amps and a DC supply voltage of 300 Volts. It features forced cooling provided by a mounted heatsink blower powered by a 220V AC source and offers a serial RS 232 C interface for communication.
Internal Product Review
The KDA 3.1-150-3-A0S-W1 is a Bosch Rexroth Indramat spindle drive designed for high-performance machining with a 150 A rated current and 300 VDC supply voltage. Forced cooling with a mounted heatsink blower and compatibility with a 220V AC source ensure stable thermal management during demanding operations. Serial RS232C interface provides flexible connectivity, making this spindle drive a reliable solution for automated environments.
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Product Description:
The KDA 3.1-150-3-A0S-W1 is a spindle drive unit produced by Bosch Rexroth Indramat for the KDA Spindle Drives series. Classified as a spindle drive, it forms the power and control interface between a machine tool’s CNC and its main spindle motor, governing torque, acceleration, and steady-state speed during cutting cycles. This module belongs to hardware revision 3 of the platform, matching its electrical layout to companion supply and feedback components used in modular Indramat drive cabinets.
The drive draws its DC bus from a common supply at 300 VDC, establishing the operating potential for its IGBT bridge. Under nominal conditions it can furnish a continuous phase current of 150 A, giving the connected spindle the acceleration capability required for rapid tool changes. Thermal energy is removed in a forced-cooling arrangement; the integral heatsink blower is powered from an auxiliary line of 220V/50-60Hz so airflow remains constant even when the spindle is idle. Command data arrive as an analogue ±10 V speed reference, and a Serial interface (RS 232 C) is provided for parameter upload, alarm capture, and firmware maintenance through a host PC or operator panel.
Environmental and mounting constraints are clearly defined. Reliable operation is specified for ambient temperatures between 5 to 45 Degrees Celsius, allowing placement inside temperature-controlled machining cells without supplemental conditioning. Installation is permissible up to 1000M above sea level with no current or voltage derating. The dedicated mounted heatsink blower channels air through the fin stack, maintaining semiconductor junction temperatures during prolonged high-speed cutting passes. For feedback expansion, this variant is labeled does not feature additional input; therefore, only the primary encoder from the spindle motor is processed by the control electronics, simplifying wiring in compact cabinets.
