AC Current

DescriptionDIN rail mounting protection relays for use in single and three phase systems. Available in 55mm x 112mm or 100 x 112mm DIN rail cases.ApplicationFor over protection, under protection and combined under & over protection available in AC current AC voltage & frequency versions. Millivolt trip, DC voltage trip, Reverse Power, Phase sequence & Phase balance relays also available in our extensive range of protection relays.Selection GuideM200-A1USingle phase under currentM200-A1OSingle phase over currentM200-A1CSingle phase combined currentM200-A3U3 phase under currentM200-A3O3 phase over currentTypical ApplicationsThe M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under, over and combined under/over units are available. The relay operates when the adjustable trip point is reached. An externally adjustable time delay is provided to prevent nuisance tripping. As is common with all the M200 relays, on over relays the unit energises when the input signal exceeds the trip point. On under units the relay de-energises when the input signal goes beyond the trip point. A red LED indicates the condition of the power supply.Technical SpecificationsINPUTRated value In1A or 5A from C.T. 0.2 to 10 Amp direct connectedFrequency50/60/400HzBurden<0.5VA per phaseOverload2 x In continuous 10 x In for 3 secondsSETPOINTRange OverAdjustable 40% to 120% InRange UnderAdjustable 0% to 80% InRepeatabilityBetter than 0.5% of spanDifferentialFixed 5%Time DelayAdjustable 200mS to 10 secondsAUXILIARYAC Voltage115 / 230 / 400V(±25%/45-65Hz/<2VA)DC Voltage24 volt(±20% / galvanically isolated)<3 wattWEIGHT&CASESingle UnitsApprox 0.4kg 55mm caseCombined UnitsApprox 0.6kg 100mm caseOrdering InformationProduct CodeInputFreqAuxM200-A305A50Hz230VOptions1Adjustable time delay max 30 seconds2AC Auxiliary in range 57.7 to 480 volts3Calibration at nominal Hz4Calibration at temperature other than 23C.Connection Diagrams

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