7SR5711-1AF21-1AA0Brand: SiemensMPN: 7SR5711-1AF21-1AA0Motor prot. 7SR57 4 curr. trans., 4 volt. trans., 8 TSI (Temperature Sensor Input), 9 BI, 8 BO Standard interface: 1 x USB (front), RS 485 (rear) + 2 x optical Request a quote