RAC4.3-300-460-A0D-W1

The Bosch Rexroth Indramat RAC4.3-300-460-A0D-W1 from the RAC Spindle Drive Controllers series is a high-performance AC Main Spindle Drive Controller engineered for robust industrial automation. It accepts a three-phase 3 x AC 380 - 460 V, ±10%, 50 - 60 Hz supply and delivers a continuous controller output of 35 kW with short-term peaks up to 55 kW. A dedicated control voltage of AC 230 V, ±10%, 50 - 60 Hz; 200 VA ensures stable auxiliary power for internal circuitry. Native integration with precision motors is enabled through advanced power conversion electronics.

Reliability is reinforced by an IP 10 per EN 60 529 (DIN VDE 0470) protection category and a compact mounted fan cooling system designed for efficient heat dissipation. The controller thrives in ambient temperatures from 5 to 45 centigrade and can be installed at altitudes up to 1000 meters above sea level without derating. Although no additional bleeder is provided (Not available), integrated safety routines prevent overvoltage conditions and ensure system integrity. High switching frequencies and rugged internal components guarantee minimal performance degradation under cyclic loads.

Weighing an estimated 49 kg, this unit balances heft with serviceability, facilitating secure panel mounting and straightforward field access. Its precise output modulation and programmable parameters make it ideal for high-speed spindles in milling, grinding, and turning applications. With proven reliability in demanding environments and streamlined commissioning routines, the RAC4.3-300-460-A0D-W1 delivers industry-leading precision motor control and operational uptime.