... ,block loading,current leakage etc. YD2300 Series Intelligent Motor Protector, developed by YADA Electric Co., Ltd., ... 660V) caused by short circuit, overloading, block loading, phase loss/unbalance, over/under-voltage, current leakage, or zero ... sequence.Feature ModelStructureFunction & FeatureYD2301TIntegrated² The motor protector replaces the thermal relay protection by adopting Normal ...