欠过电压继电器三相供电监视相故障、相失衡及逆相保护，欠、过电压保护可调节的相位失衡保护可调节的欠压、过压设置可调节的跳闸延时预置的电源开启延时2CO继电器输出。Minilec公司的质量体系已通过BVQI检验，完全符合ISO9001国际质量标准的要求。产品还在以下的实验室按照IEC标准顺利通过测试：CPRI、ERDA、ETDC和新加坡的SISIR。型号S2VMR３系统供电电压±20%100-120/220-240/380-440VAC-25%+20%,48-63Hz输出触点2CO相位失衡跳闸设置4%-20%可调欠压跳闸设置For380-440VACFor220-240VACFor100-120VAC285-425V可调165-225V可调75-115V可调过压跳闸设置For380-440VACFor220-240VACFor100-120VAC400-520VAC[Variable]230-290VAC[Variable]105-145VAC[Variable]相故障1-10秒调节相逆反瞬时相失衡1-10秒调节欠电压（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）90×35×60SupplyVoltageSystem:100-120/220-240/380-440VAC-25%+20%,48-63HzAuxillary:BuiltIn(from3Phase)OutputContacts:2COTripSetting(Volts)PhaseSequence:YesPhaseUnbalance:4%-20%[Variable]UnderVoltageFor380-440VACFor220-240VACFor100-120VAC:::285-425VAC[Variable]165-225VAC[Variable]75-115VAC[Variable]OverVoltageFor380-440VACFor220-240VACFor100-120VAC:::400-520VAC[Variable]230-290VAC[Variable]105-145VAC[Variable]TripTimeDelayOnPhaseSequence:InstantOnSP/UV/OV:1To10Sec[Variable)ResettingMode:Auto/ManualReset[Selectable]Weight:110gms.(Approx)Dimensions(mm)Overall(LxWxD):90X35X60Mounting(LxW):35mmRailMountingNote:WherevernotspecifiedContactRating:5A@230VAC(resistive)