RAC 3.5-100-460-A00-Z1-220

The Bosch Rexroth Indramat RAC 3.5-100-460-A00-Z1-220 from the RAC Spindle Drive Controllers series is a high-precision AC Main Spindle Drive Controller designed to meet demanding machining requirements. It operates on a Rated Connection Voltage of 3 x AC 400 V, 50 Hz, +/–15% or 3 x AC 460 V and provides a continuous Rated Current of 100 A. The controller integrates a Rated Connection for Control Electronics of AC 230 V / 50-60 Hz and accepts a Speed Command via Analogue (+/– 10 V) input. Connectivity is ensured through a robust Interface Terminal X4, 9 poles, while the internal architecture benefits from an Internal Blower / Built-in fan for efficient thermal management.

Reliability is boosted by an Additional Bleeder circuit that stabilizes the DC link during rapid current changes and an Additional Encoder Input option that can be omitted for simplified configurations. The module is part of the Series 3, Version 5 platform, delivering consistent firmware compatibility and lifecycle support across the family. All power and control electronics are sealed within a compact housing that maintains optimal cooling performance under full load. The absence of a secondary encoder port streamlines wiring in standard applications, and the analog speed interface reduces commissioning time in retrofit scenarios.

Engineers will appreciate the RAC 3.5-100-460-A00-Z1-220’s plug-and-play readiness, with standardized mounting dimensions and clear terminal labeling minimizing installation errors. The robust design and comprehensive voltage tolerance make it suitable for high-speed spindle drives, milling operations, and precision grinding machines. With built-in protection features and modular construction, this controller ensures long-term uptime and simplified maintenance for automated manufacturing environments.