1.overpower protection controller: overload,overcurrent,phase failure,etc. 2. measure volt,amp,watt,kwh 3. profibus/modbus PMAC802 overpower protection controller 'Features: 1. Use module framework. Several modules can be selected flexibly. 2. PMAC802 provides 12 protection functions such as start overtime protection, overload protection, overcurrent protection, phase failure protection, current ...