7UT6331-5EB92-4BC1-L0S

Siemens

DIGITAL DIFFERENTIAL PROTECTION RELAY, FOR TRANSFORMER, GENERATORS, MOTOR, SMALL BUSBARS AND SHORT CABLE, BACKLIT GRAPHIC DISPLAY, 14 PROGRAMMABLE LED, NAVIGATION KEYS, FUNCTION KEYS, CONTROL KEYS, NUMBER BLOCK, CASE 1/1 X 19", 21BI, 24BO, 1 WATCHDOG CONTACT, 11I, IEE, 4 VOLTAGE INPUTS (1 X 3-PHASE + 1 X 1-PHASE) CURRENT TRANSFORMER: 1A SUPPLY VOLTAGE: DC 110V TO 250V, AC 115V/230V, TRIGGER LEVEL BINARY INPUT 88V FLUSH MOUNTING CASE, SCREW TERMINALS (DIRECT WIRING/RING LUGS) REGION WORLD, IEC/ANSI, LANGUAGE ENGLISH (LANGUAGE CHANGEABLE) SYSTEM PORT (ON REAR OF DEVICE) PORT B IEC 61850,100 MBIT ETHERNET WITH INTEGRATED SWITCH OPTICAL, DOUBLE, LC-CONNECTOR (FROM OCT. 09) DIGSI 4/MODEM PORT (ON REAR OF DEVICE) PORT C DIGSI 4, BROWSER OR THERMO-BOX, ELECTRICAL RS-485 BASIS MEASURED VALUES, FAULT RECORDING + MEAN VALUES, MIN/MAX VALUES TRANSFORMER-MONITORING FUNCTION (CONNECTION ON THERMO-BOX, HOTSPOT IEC354, OVERLOAD FACTOR) RESTRICTED EARTH FAULT LOW IMPEDANCE (87N) UMZ, 1-PHASE FOR RESTRICTED EARTH FAULT HIGH IMPEDANCE (87N WITHOUT RESISTOR AND VARISTOR) SENSITIVE OVERCURRENT-TIME PROTECTION/TANK PROTECTION (64) NEGATIVE SEQUENCE PROTECTION (46) BREAKER FAILURE PROTECTION (50BF) TRIP CIRCUIT SUPERVISION (74TC) ADDITIONAL FUNCTION: VOLTGAE MEASUREMENT AND OVEREXCITATION PROTECTION, OVER-/UNDERVOLTAGE PROTECTION, FREQUENCY PROTECTION, DIRECTIONAL PROTECTION, FUSE FAILURE MONITOR MULTIPLE PROTECTION FUNCTION XMZ (50,51,50N/G,51N/G) REF (87N), SVS (50BF), ULS (49)