Numerical Communicable Motor Protection Relay : ADR244ASpecificationsStart-up Time Supervision. Thermal Overload & Start Number Protection. Selection of Curve: Five selectable IEC curve (Normal Inverse1 (C1), Normal Inverse2, (C2) Very inverse (C3), Extremely inverse (C4), Long time inverse (C5)) and Define Time (C6) Five selectable IEEE / ANSI Curve C7 to C11 and C12 RI curve & C13 RXIDG curve. On site CT Secondary selection 1A or 5A. Earth Fault & Current Unbalance Protection. Breaker Fail & CB Trip Circuit Supervision.(TC). Under/Over Voltage Protection. Under/Over Current Protection. Under/Over Frequency Protection. Active Under/Over Power Protection. Power Factor Protection. Large 20x4 LCD display for Parameter and setting display. Disturbance Recorder. Up 3 sec. Fully communicable with IEC standard open protocol. IEC60870-5-103 & IEC 61850. Separate Communication Port for SCADA (RS485) as well as Local testing (RS232C). 10 Programmable Digital Output contacts. Display of Voltage, current, PF, Active, Reactive Power in terms of primary & Secondary value.The ADR244A is Motor protection relay This type of relays are designed using latest numerical technology and having programmable digital input and outputs to minimized external contact multiplication electromechanical relays. All relays are tested for EMI / EMC noise as per international IEC specifications. General features of this relay are as given below