KDA 3.1-050-3-L0S-U1

KDA 3.1-050-3-L0S-U1, Bosch Rexroth Indramat, KDA Spindle Drives delivers precision spindle control with robust current handling and high-voltage DC bus support. Designed for high-performance machining centers, this main spindle drive features a Rated Current of 50 A and an integrated DC Bus Voltage of 300 V, enabling stable torque over a wide speed range. Its compact housing integrates seamlessly into machine tool cabinets and supports industry-standard SERCOS communication for speed command and feedback. Forced cooling via a dedicated heatsink blower preserves component life under continuous duty.

Engineered for demanding spindle applications, the KDA 3.1-050-3-L0S-U1 accepts an AC Supply Source for Heatsink Blower of 115 VAC and utilizes a high-efficiency Cooling system with a heatsink blower to maintain optimal operating temperature. The drive’s Aux. Interface is a reliable Serial Interface RS 232 C, while the Aux. Encoder Input option is provided Without additional encoder circuits for streamlined integration. As part of the Product KDA Series 3 design, it offers precise speed command processing via the Speed Command Value channel through the SERCOS – Interface. The modular layout and standardized mounting dimensions simplify retrofit and new installations alike.

With its hardened electronics and forced cooling arrangement, the drive ensures long-term reliability in heavy-duty milling and turning centers. Integration into automated machining cells is straightforward thanks to its native SERCOS connectivity and RS-232 auxiliary link, reducing wiring complexity. The Bosch Rexroth Indramat KDA 3.1-050-3-L0S-U1 excels in applications requiring high stiffness, precise positioning, and broad speed ranges, making it ideal for modern CNC spindle control solutions.