MULTIFUNCTION PROTECTIVE RELAY WITH BACKLIT GRAPHIC DISPLAY, 14 PROGRAMMABLE LED, KEY SWITCHES, CASE 1/2 19", 24BI, 11BO, 2 POWER RELAYS, (4 CONTACTS) 1 WATCHDOG CONTACT MEASURING INPUTS (3 X U,4 X I): IPH = 1A, IE = 1A(MIN. = 0.05A) SUPPLY VOLTAGE: DC 24V TO 48V, TRIGG.LEVEL BINARY INPUT DC 19V FLUSH MOUNTING CASE, SCREW TERMINALS LANGUAGE ENGLISH, 50/60HZ, IEC/ANSI, REGION WORLD, (LANGUAGE CHANGEABLE) System interface Rear of the device port B IEC protocol, electrical RS 485 DIGSI 4/modem interface Rear of the device port C DIGSI 4, electrical RS 485 METERING: PEAK VALUES, AVERAGE METER, MIN/MAX-VALUES, FAULT RECORDING FUNCTIONALITY: TOC+ PHASE OVERCURRENT (50/51): I>,I>>,IP,REVERSE INTERLOCKING, INDEPENDENT OF PHASE ROTATION, GROUND OVERCURRENT (50N/51N): IE>, IE>>,IEP, OVERLOAD PROTECT.W. 2 TIME CONSTANTS(49) TRIP CIRCUIT SUPERVISION (74TC) UNDERCURRENT MONITORING (37), DISPLACEMENT VOLTAGE (59N/64), BREAKER FAILURE PROTECT. (50BF) COLD LOAD PICKUP, INRUSH BLOCKING, NEGATIVE SEQUENCE (46), LOCK OUT (86) Without automatic reclosing