RAC 3.1-100-460-A00-W1-220

RAC Spindle Drive Controllers

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The Bosch Rexroth Indramat RAC 3.1-100-460-A00-W1-220 is a high-performance unit in the RAC Spindle Drive Controllers series, designed for precise main spindle motor control in industrial automation. It supports a Rated Connection Voltage of 3 x AC 400 V (50 Hz, ±15%) or 3 x AC 460 V, and delivers a continuous controller output of 26 kW with a Rated Current of 100 A. Its primary function is to manage the speed and torque of main spindle drives, ensuring smooth, accurate machining and production cycles.

With an integrated Cooling system featuring an internal blower and built-in fan, the RAC 3.1-100-460-A00-W1-220 maintains optimal thermal performance under demanding loads. It offers analogue speed command input (±10 V) and an interface terminal X4 with 9 poles for flexible connection. Continuous regeneration output of 18 kW and peak regeneration output of 26 kW enable efficient energy recapture during braking phases. The controller’s peak output reaches 40 kW, accommodating short-term load spikes and ensuring reliability in high-duty applications.

Engineered for longevity, this AC main spindle drive controller operates in ambient conditions from +5 °C to +45 °C and can be stored between -30 °C and +85 °C. It complies with the IP10 protection category according to EN 60 529 (DIN VDE 0470), preventing ingress of objects over 50 mm and ensuring secure installation within control cabinets or closed housings. Without the need for additional bleeder or encoder input, it integrates seamlessly into existing systems. The RAC 3.1-100-460-A00-W1-220’s robust design, energy-efficient regeneration, and precise control capabilities make it an ideal choice for demanding industrial applications, enhancing productivity and reducing operational costs.