AC CURRENT RELAY
		SELECTION GUIDE M200-A1U Single phase under current M200-A1O Single phase over current M200-A1C Single Phase combined current M200-A3U 3 Phase under current M200-A3O 3 Phase over current TYPICAL APPLICATIONS The 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 units the relay energises when the input signal exceeds the trip point On under units the relay de-energises when the input signal goes below the trip point. A red LED indicates the state of the relay, whilst a green LED indicates the condition of the power supply. OPTIONS 1.Adjustable time delay max 30 seconds 2.AC Auxiliary in the range 57.7 to 480 volts 3.Calibration at nominal Hz 35 450Hz 4.Calibration at temperature other than 23º C		TECHNICAL SPECIFICATION INPUT Rated value In 1A or 5A from CT 0.2 to 10 Amp direct connected Frequency 50 /60 /400 Hz Burden <0.5 VA per phase Overload 2 x In continuous 10 x In for 3 seconds SETPOINT Range Over Adjustable 40% to 120% In Range Under Adjustable 0% to 80% In Repeatability Better than 0.5% of full span Differential Fixed 5% Time Delay Adjustable 200ms to 10 seconds AUXILIARY AC Voltage 115/230/400V ( ± 25% /45-65 Hz / <2 VA) DC Voltage 24 volt ( ± 20% /galvanically isolated) <3 watt WEIGHT& CASE SIZE Single units Approx. 0.4kg. 55mm case Combined units Approx. 0.6kg. 100mm case ORDERING INFORMATION Product Code Input Freq. Aux. Options M200-A30 5A 50Hz 230V