PMAC801 motor protection relay, motor protection device for 660Vac motor, RS485/ Modbus-RTU,or Profibus-DP, use in MCC 1. ... , reversing direct starter, star/delta starter, and autotransformer starter etc motor starting control modes. 5. Main module provides 9 DIs for start ... . Main module provides 5 DOs to meet varies of starting control modes and protection action. If more DOs are needed, an ...