KDA 3.3-150-3-W1

The Bosch Rexroth Indramat KDA 3.3-150-3-W1 from the KDA Spindle Drives series features a rated voltage of 300 V, a current rated of 150 A, and a continuous current of 90 A. It also supports a DC Bus voltage of 300 V and a rated connection voltage for attached blower of AC 5006 Hz. This drive controller has been engineered for demanding spindle applications, delivering precise speed regulation and high torque capacity. Built by Bosch Rexroth Indramat under stringent quality standards, it ensures consistency and durability in high-performance environments.

Reliability is further enhanced by the integrated forced heat sink blower, which is powered by an AC source supply of 220 VAC to maintain optimal thermal conditions. The controller’s intelligence includes a digital 16-bit parallel speed command value for fine resolution speed control and an auxiliary interface RS-232C for flexible communication. In addition, the unit is classified as Design 3 and offers dual options for auxiliary encoder input, supporting either second motor feedback or a dedicated spindle encoder. These features combine to guarantee accurate feedback, minimal drift, and compatibility with a wide range of feedback devices.

Compact yet powerful, the KDA 3.3-150-3-W1 excels in applications where space is at a premium without sacrificing performance. Its robust construction and efficient cooling system extend service life and reduce maintenance intervals. Ideal for CNC spindles, milling heads, and high-speed drilling, this spindle drive controller balances precision, power, and reliability for advanced motion control solutions.