KDA 3.3-100-3-AP0-W1

The Bosch Rexroth Indramat KDA 3.3-100-3-AP0-W1 from the KDA Spindle Drives series is designed for demanding CNC spindle applications, featuring a Current Rated 100 A and a Continuous Current 70 A output. This controller operates on a Rated Voltage 300 V DC bus and requires a Rated Connection Voltage AC 50/60 Hz for its integrated heatsink blower. Engineered to Series 3 standards with a Design 3 form factor, the drive delivers precise speed regulation ideal for high-stiffness positioning tasks. Its compact footprint and rugged construction ensure compatibility with a broad range of machine tool environments.

The KDA 3.3-100-3-AP0-W1 supports an Aux. Encoder Input for spindle or secondary motor feedback, enabling closed-loop control and accurate torque management. An industry-standard Speed Command Value Analog +/-10V interface simplifies integration with existing PLCs and motion controllers. Forced cooling via the onboard heatsink blower maintains thermal stability under continuous operation, while the drive’s protective circuitry guards against overcurrent and overtemperature conditions. This combination of features offers seamless retrofitting into Indramat 1MB frameless spindle motors and 2AD asynchronous motor platforms.

Maintenance requirements are minimal, with the sealed blower and durable electronic components ensuring reliable service life. When used as a direct replacement for inoperative units, commissioning is accelerated by the drive’s self-identification routines and predefined parameter sets. The KDA 3.3-100-3-AP0-W1 provides a high-performance, low-downtime spindle drive solution for precision machining centers, C-axis configurations, and demanding milling operations.