The EC series system continually monitors the 50/60 Hz VAC source voltage. When voltage errors occur, the control system prevents unfavorable voltage conditions from being passed to essential equipment. Each system is provided with a prewired and tested enclosure, controller, and contactor.Main Features:Protects equipment from under and over voltage conditions.Three Phase or Single Phase Systems.Continual real time monitoring.Alert/Fault history stored.Adjustable voltage monitoringUser defined start delay, phase error, and voltage thresholds.Optional disconnect feature.Optional IP interfaceSpecifications:Standards: UL ListedAmperage Rating: Model Dependent. Model # = Maximum Current Rating. EC-30 = 30 Amp Rating.Category UL/IEC: Type 1CA for use in Type 1, 2, and 3 Applications/Class C (II)Voltage Range: 190-630 VAC 50/60 Hz Single or Three Phase, WYE or DeltaResponse Time: 25nsDimensions: Unit:20x20x6|ShippingBox: 22x22x18Net Weight: 35 lbs.Operating Temperature Range: -40 C to 80 COperating Humidity Range: 0 90%