NJBK2 series motor protection relay (hereinafter referred to protector as simply) is applicable for overload, locked-rotor, phase-failure, three phase current unbalance, earthing and PTC temperature protection of AC motor @ A.C.50Hz, less than 690V rated insulation voltage and 1A ~ 800A rated operating current for its continuous working or discontinuous working.
This product meets the requirements of IEC 60947- 4-1