DIGITAL DIFFERENTIAL PROTECTION RELAY, FOR TRANSFORMER, GENERATORS, MOTOR AND SHORT CABLE 4-LINE ALPHANUM.BACKLIT DISPLAY 7 PROGRAMMABLE LED, NAVIGATION KEYS, FUNCTION KEYS, CASE 1/3 X 19", 3BI, 4BO, 1 WATCHDOG CONTACT, 7I, IEE, CURRENT TRANSFORMER: 1A SUPPLY VOLTAGE: DC 60V TO 125V, TRIGGER LEVEL BINARY INPUT 19V FLUSH MOUNTING CASE, SCREW TERMINALS (DIRECT WIRING/RING LUGS) REGION WORLD, 50/60HZ, IEC/ANSI, LANGUAGE ENGLISH (LANGUAGE CHANGEABLE) SYSTEM PORT (ON REAR OF DEVICE) PORT B PROFIBUS DP SLAVE, RS485 WITHOUT DIGSI 4/MODEM PORT BASIS MEASURED VALUES, FAULT RECORDING FUNCTIONALITY: DIFFERENTIAL PROTECTION, BASIC FUNCTION, DIFFERENTIAL PROTECTION TRANSFORMER, GENERATOR, MOTOR, BUSBAR, (87 T G M L), OVERLOAD PROTECTION FOR ONE PAGE (49), LOCK OUT (86), TIME OVERCURR.PROTECT.TOC PHASE (50/51): I>, I>>, IP (INRUSH BLOCKING) TIME OVERCURR.PROTECT.TOC 3I0 (50/51): 3I0>, 3I0>>, 3I0P (INRUSH BLOCKING) TIME OVERCURR.PROTECT.TOC EARTH (50/51): IE>, IEE>>, IEP (INRUSH BLOCKING)