Siemens – 7SR5421-6AA16-0AA0

DUOBIAS-M (2 WINDING) TRANSFORMER DIFFERENTIAL RELAY E8 CASE, 6CT, 2EF/REF CT, 1VT, 9 BINARY INPUTS/ 6 BINARY OUTP. 16 LEDS MEASURING INPUT: 1/5 A 63.5/ 110V, 50/60HZ REGION WORLD, LANGUAGE: ENGLISH USB FRONT PORT, RS485 REAR PORT + REAR F/O ST CONNECTORS (X2) AND IRIG-B IEC 60870-5-103 AND MODBUS RTU (USER SELECTABLE SETTING) PROTECT. FUNCT.:STANDARD + UNDERCURRENT (37) NEGATIVE PHASE SEQUENCY O/C THERMAL OVERLOAD (49) INSTANTANEOUS PHASE FAULT O/C INSTANTANEOUS EARTH FAULT TIME DELAYED PHASE FAULT O/C AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC)

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E8 CASE, 4 CT, 19 LEDS, 19 BINARY INPUTS/ 16 BINARY OUTPUTS MEASURING INPUT: 1/5A, 50/60HZ AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC) . USB FRONT PORT, RS485 REAR PORT PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .

DUOBIAS-M (2 WINDING) TRANSFORMER DIFFERENTIAL RELAY E8 CASE, 6CT, 2EF/REF CT, 1VT, 9 BINARY INPUTS/ 6 BINARY OUTP. 16 LEDS MEASURING INPUT: 1/5 A 63.5/ 110V, 50/60HZ REGION WORLD, LANGUAGE: ENGLISH USB FRONT PORT, RS485 REAR PORT + REAR F/O ST CONNECTORS (X2) AND IRIG-B IEC 60870-5-103 AND MODBUS RTU (USER SELECTABLE SETTING) PROTECT. FUNCT.:STANDARD + UNDERCURRENT (37) NEGATIVE PHASE SEQUENCY O/C THERMAL OVERLOAD (49) INSTANTANEOUS PHASE FAULT O/C INSTANTANEOUS EARTH FAULT TIME DELAYED PHASE FAULT O/C Auxiliary voltage: 24 - 250 V DC / 100-230 V AC Binary input threshold 88 V DC (rated: 110-250 V DC)

DUOBIAS-M TRANSFORMER DIFFERENTIAL RELAY (2 WINDING) E8 CASE, 6CT, 2EF/REF CT, 1VT, 9 BINARY INPUTS/ 6 BINARY OUTP. 16 LEDS MEASURING INPUT: 1/5 A 63.5/ 110V, 50/60HZ REGION WORLD, LANGUAGE: ENGLISH USB FRONT PORT, RS485 REAR PORT IEC 60870-5-103 AND MODBUS RTU (USER SELECTABLE SETTING) PROTECTION FUNCTION: STANDARD VERSION AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC)

Transformer differential protection (Duobias- M) E8 enclosure, 6 curr. trans., 2 ES/EDS curr. trans., 1 volt. trans. 9 BI / 6 BO, 16 LEDs Measuring inputs: 1/5A, 40 to 160V, 50/60Hz Auxiliary voltage 24 - 250V DC / 100- 230V AC Threshold binary input: 19V DC USB interface at front, RS485 interface at rear, Protocol: IEC 60870-5-103 and Modbus RTU (adjustable) Protective function: Standard version + Option B

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E6 CASE, 4 CT, 8 LEDS, 9 BINARY INPUTS/ 8 BINARY OUTP. MEASURING INPUT: 1/5A, 50/60HZ AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC) . USB FRONT PORT, RS485 REAR PORT + REAR ELECTRICAL ETHERNET RJ45 PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) AND IEC61850 . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E8 CASE, 4 CT, 19 LEDS, 19 BINARY INPUTS/ 16 BINARY OUTPUTS MEASURING INPUT: 1/5A, 50/60HZ Auxiliary voltage: 24 - 250 V DC / 100-230 V AC Binary input threshold 88 V DC (rated: 110-250 V DC) . USB FRONT PORT, RS485 REAR PORT + REAR F/O CONNECTORS (X2) AND IRIG-B PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E8 CASE, 4 CT, 19 LEDS, 19 BINARY INPUTS/ 16 BINARY OUTPUTS MEASURING INPUT: 1/5A, 50/60HZ Auxiliary voltage: 24 - 250 V DC / 100-230 V AC Binary input threshold 88 V DC (rated: 110-250 V DC) . USB FRONT PORT, RS485 REAR PORT + REAR RS485 AND IRIG-B PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E8 CASE, 4 CT, 19 LEDS, 19 BINARY INPUTS/ 16 BINARY OUTPUTS MEASURING INPUT: 1/5A, 50/60HZ Auxiliary voltage: 24 - 250 V DC / 100-230 V AC Binary input threshold 88 V DC (rated: 110-250 V DC) . USB FRONT PORT, RS485 REAR PORT + REAR OPTICAL ETHERNET DUPLEX PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) AND IEC61850 . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .

RECLOSER-M DIRECTIONAL. OVERCURRENT RELAY E10 CASE, 4 CT, 4 VT, 13 BINARY INP./ 14 BINARY OUTP. 8 LEDS + 12 KEYS MEASURING INPUT: 1/5 A 63.5/ 110V, 30 TO 220V DC AUXILLIARY, BINARY INPUT THRESHOLD 19V DC REGION WORLD, 50/60HZ, FASCIA R LAGUAGE ENGLISH (CHANGEABLE) USB FRONT PORT, RS485 REAR PORT PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) PROTECTION FUNCTION: STANDARD FUNCTION . STANDARD SETTINGS AND LABELS FOR SIEMENS RECLOSER-M

RECLOSER-M DIRECTIONAL. OVERCURRENT RELAY E12 CASE, 4 CT, 4 VT, 33 BINARY INP./ 30 BINARY OUTP. 16 LEDS + 12 KEYS MEASURING INPUT: 1/5 A 63.5/ 110V, AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC) REGION WORLD, 50/60HZ, FASCIA S LAGUAGE ENGLISH (CHANGEABLE) USB FRONT PORT, RS485 REAR PORT + REAR F/O CONNECTORS (X2) AND IRIG-B PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) PROTECTION FUNCTION: STANDARD FUNCTION . STANDARD SETTINGS AND LABELS FOR SIEMENS RECLOSER-M

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E6 CASE, 4 CT, 8 LEDS, 9 BINARY INPUTS/ 8 BINARY OUTP. MEASURING INPUT: 1/5A, 50/60HZ AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 19V DC (RATED: 24-250V DC) . USB FRONT PORT, RS485 REAR PORT + REAR OPTICAL ETHERNET DUPLEX PROTOCOL: IEC 60870-5-103 AND MODBUS RTU AND DNP 3.0 (USER SELECTABLE SETTING) AND IEC61850 . PROTECTION FUNCTION: 3 PHASE HIGH IMPEDANCE DIFFERENTIAL (87/50) HIGH IMPEDANCE RESTRICTED EARTH FAULT (87REF) MEASURED EARTH FAULT (50G) 3 PHASE CT SUPERVISION (CT50) TRIP CIRCUIT SUPERVISIOR (74TC) PROGRAMMABLE LOGIC . .