AC VOLTAGE RELAY
		SELECTION GUIDE M200-V1U Single phase under voltage M200-V1O Single phase over voltage M200-V1C Single phase combined voltage M200-V33U 3 phase 3 wire under voltage M200-V33O 3 phase 3 wire over voltage M200-V33C 3 phase 3 wire combined M200-V34U 3 phase 4 wire under voltage M200-V34O 3 phase 4 wire over voltage M200-V34C 3 phase 4 wire combined voltage TYPICAL APPLICATIONS The M200 AC voltage relay provides voltage monitoring and protection in both single and 3 phase systems. Used in applications such as mains failure, regulation of power supplies and to protect voltage sensitive equipment. Under, over and combined under/over units are available. The relay operates when the externally adjustable trip point is reached. An external differential control is provided with adjustment 1-15%. The differential ensures that the parameter being measured returns to % set above or below (depending on whether it is under or over unit) the trip point before the relay returns to its original state. As is common with al/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. ORDERING INFORMATION Product Code Input Freq Options M200-V34U/D 230V 50Hz 5 sec t/d	TECHNICAL SPECIFICATION INPUT Rated value Un Single phase 57.8 <500 V Three phase 100 <500 V Frequency 50/60/400 Hz Burden <2.5 VA per phase single units <3 VA per phase combined units Overload 1.5x Un continuous 2 x Un for 3 seconds SETPOINT Range under Adjustable 75% to 100% Un Range over Adjustable 100% to 125% Un Repeatability Better than 0.5% of full span Differential Adjustable 1 to 15% Operating time Typically 200ms AUXILIARY All units self powered. WEIGHT& CASE SIZE Single units Approx. 0.4kg. 55mm case Combined units Approx. 0.6kg. 100 mm case OPTIONS 1. On all of the above units, except the combined, an internally set time delay is available for any value between 1 & 10 seconds. To order use the above codes adding a D at the end of the code, e.g. M200-V34U/D 5 seconds (state the fixed delay period). 2. To prevent nuisance tripping when there is a slight variation in the voltage supply the following option is available. The external differential is replaced on the following products with an externally adjustable time delay. On these units the time delay is adjustable from 200ms to 10 seconds, and the differential is fixed at 1%. M200- V1X Single phase under voltage M200-V1Y Single phase over voltage M200-V1W Single phase combined voltage M200-V33X 3 phase 3 wire under voltage M200- V33Y 3 phase 3 wire over voltage M200-V33W 3 phase 3 wire combined voltage M200-V34X 3 phase 4 wire under voltage M200- V34Y 3 phase 4 wire over voltage M200- V34W 3 phase 4 wire combined voltage 3. Calibration at temperatures other than 23º C