... phase current unbalance,under-voltahe etc.2,Error display:With phase A,phaseB,phaseCworking power indicating(any ... three phases failed,the indicating lamp off), overload display(when the mo tor working current exceed the ... working power supply(ZDS-1 type has current display).3,The said error appeared:The Stop ... comTHANK YOU FOR YOUR VISITING! NEW DESIGN!! WHZD-25A smart motor protector(CCC&CE&ISO9001)