KDA 3.3-150-3-D00-U1

The Bosch Rexroth Indramat KDA 3.3-150-3-D00-U1 from the KDA Spindle Drives series is a high-performance main spindle drive controller combining precision motion control with robust electrical design. This controller delivers a rated voltage of 300 V and supports a current rated of 150 A with a continuous current of 90 A output. It incorporates an integrated rated connection voltage for attached blower of AC 50–60 to ensure efficient thermal management under load. The compact module is engineered for direct cabinet installation, providing an IP10 protection category for basic ingress resistance and a heatsink blower for active cooling.

The drive’s internal architecture is built around a Digital 16-Bit Parallel Speed Command Value interface, enabling seamless communication with advanced CNC and PLC systems. It features an Aux. Encoder Input: WithoutAux. Interface1 for direct sensor feedback and closed-loop stability. Classified as Product: KDA, Series: 3, Design: 3, this controller integrates a microprocessor-controlled logic core that monitors operating parameters in real time. Each unit undergoes rigorous factory calibration and is equipped with housing slits to optimize convection airflow.

Engineers will appreciate that the controller’s electronic components must comply with Bosch Rexroth Indramat quality standards to maintain reliability over extended service life. The unit is rated for continuous operation at ambient temperatures up to +85 °C when properly ventilated and mounted. With its combination of high current capacity, precision digital control, and modular design, the KDA 3.3-150-3-D00-U1 drive controller offers a dependable solution for demanding spindle applications in industrial automation.