KDA 3.3-050-3-L0I-U1

The Bosch Rexroth Indramat KDA 3.3-050-3-L0I-U1 is a high-performance drive from the KDA Spindle Drives series by Bosch Rexroth Indramat. This spindle drive features a Rated Current of 50 A and a DC Bus Voltage of 300 V, delivering the necessary power density for demanding machining and milling applications. With its Forced Cooled by Heatsink Blower design, the drive maintains stable operating temperatures even under continuous load. Its primary function is to control and regulate spindle speed and torque with high stiffness and precise positioning across an extensive speed range, making it ideal for integrating into CNC machine tools and automated production systems.

This KDA 3.3-050-3-L0I-U1 drive is engineered with a robust set of technical specifications to ensure superior performance and reliability. The integrated AC Supply Source for Heatsink Blower (115 VAC) powers the cooling blower, effectively dissipating heat generated during operation. An Auxiliary Interface provides an Incremental Encoder Output, enabling closed-loop feedback for accurate speed and position control. The drive accepts a Speed Command Value via the SERCOS Interface, supporting real-time, high-speed communication with modern machine controllers. As a Design 3 unit within the KDA Product series, it adheres to stringent build standards, ensuring consistent quality and durability.

In addition to its core capabilities, the KDA 3.3-050-3-L0I-U1 spindle drive offers excellent compatibility and efficiency. Its SERCOS interface standard guarantees seamless integration with a wide range of CNC controllers and automation networks, enhancing system modularity. Forced cooling by the heatsink blower not only extends component lifespan but also improves overall drive efficiency by maintaining optimal thermal conditions. The absence of an auxiliary encoder input reflects a simplified design that reduces potential failure points while still providing essential feedback through the encoder output channel. Overall, this drive delivers precise speed regulation, high torque stability, and reliable operation—benefits that are critical for maximizing throughput, minimizing downtime, and ensuring the long-term performance of industrial spindle applications.