三相三线欠过电压继电器不带中性线的三相供电监视可调节的欠压／过压设置可调节的电源开启延时和跳闸延时单独／联合欠压、过压继电器输出错误安全／非错误安全模式可供选择。型号S2VMR4系统供电电压±20%100-120/220-240/380-440VAC-25%+20%,48-63Hz输出触点1CO＋1CO相位失衡跳闸设置NA欠压跳闸设置PhPhSensing:For380-440VACFor220-240VACFor100-120VAC285-425VAC可调165-225VAC可调75-115VAC可调过压跳闸设置PhPhSensing:For380-440VACFor220-240VACFor100-120VAC400-520VAC可调230-290VAC可调105-145VAC可调相故障NA相逆反NA相失衡NA欠电压（UV）1-10秒调节过电压（OV）1-10秒调节复位自动／人工重量（gms）110尺寸（mm）90x35x60SystemSupply:100-120/220-240/380-440VAC-25%+20%,48-63HzOutputRelayContacts:1CO+1CO/2COTripSettingUnderVoltagePhPhSensing:For380-440VACFor220-240VACFor100-120VAC:::285-425VAC(Variable)165-225VAC(Variable)75-115VAC(Variable)OverVoltagePhPhSensing:For380-440VACFor220-240VACFor100-120VAC:::400-520VAC(Variable)230-290VAC(Variable)105-145VAC(Variable)TripTimeDelay:1-10Sec(Variable)PoweronDelay:1-10Sec(Variable)Reset:Auto/ManualResetWeight:110gms.(Approx.)Dimensions(mm)Overall(LxWxD):90x35x60Mounting(LxW):35mmrailMountingNote:WherevernotspecifiedContactRating:5A@230VAC(resistive))