三相相序欠过压继电器，带相故障的三相欠过压继电器。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。SupplyVoltageSystem: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)Dimensi***(mm)Overall(LxWxD):90X35X60Mounting(LxW):35mmRailMountingNote:WherevernotspecifiedContactRating:5A@230VAC(resistive)