1/6 19", 3 X V, 3 BI, 5 BO, (2 CHANGEOVER) 1 LIVE STATUS CONTACT . RATED AUXILIARY VOLTAGE 60 TO 250V DC, 115V AC, 230V AC FLUSHMOUNTING HOUSING, SCREW-TYPE TERMINAL REGION WORLD, IEC/ANSI, LANGUAGE ENGLISH (LANGUAGE CHANGEABLE) STANDARD FRONT SYSTEM PORT, PORT B (ON BOTTOM OF DEVICE, REAR) PROFIBUS DP SLAVE, ELECTR.RS485 NO SYSTEM PORT A MEASURING: WITH FAULT RECORDING, AVERAGE VALUES, MIN/MAX VALUES FUNCTIONALITY: VOLTAGE,FREQENCY,OVEREXCITATION PROTECTION AND VECTOR JUMP UNDER/OVERVOLTAGE (27/59), DISPLACEMENT VOLTAGE (64/59N), UNDER/OVERFREQUENCY (81U/O), OVEREXCITATION (24), VECTOR JUMP, PHASE ROTATION (47) TRIP CIRCUIT SUPERVISION (74TC) LOCK OUT (86), PARAMETER CHANGEOVER, MONITORING FUNCTIONS, CONTROL OF CIRCUIT BREAKER, FLEXIBLE PROTECTION FUNCTIONS (VOLTAGE PARAMETERS) RATE-OF-FREQUENCY CHANGE, RATE-OF-VOLTAGE CHANGE .