R911256096 (RAC 3.5-150-460-API-Z1-220)

RAC Spindle Drive Controllers

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The Bosch Rexroth R911256096 (RAC 3.5-150-460-API-Z1-220) is a high-functioning main spindle drive controller with a current rating of 150A. It possesses dual voltage modules, with control electronics rated AC 220 V / 50 - 60 Hz and power electronics rated 3 x AC 380 - 460V; 50 - 60Hz. It features integrated emergency-stop and main contactors, enabling the device to efficiently feed back recovered energy into its three-phase supply network during braking periods. The drive also includes an additional bleeder and a built-in fan for enhanced cooling, either internally or externally. It offers superior stiffness, wide-ranging speed compatibility and high-resolution feedback, recognizing rotor positioning to 1/4 000 000th resolution. The R911256096 (RAC 3.5-150-460-API-Z1-220) accommodates a standard CNC control integration and is sold with a kit containing the necessary flanges and screws for mounting. Note, hose cooling accessories need to be purchased separately. Furthermore, this product is provided with a one-year warranty.