7SR2303-1NA87-0CA0 SIEMENS ⍾ 7SR23031NA870CA0

HIGH IMPEDANCE PROTECTION RELAY CIRCULATING CURRENT (4 POLE FUNCTIONALITY) E8 CASE, 4 CT, 16 LEDS, 19 BINARY INPUTS/ 16 BINARY OUTPUTS MEASURING INPUT: 1/5A, 50/60HZ AUXILIARY VOLTAGE: 24 - 250V DC / 100-230V AC BINARY INPUT THRESHOLD 88V DC (RATED: 110-250V 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 . .; ;

Typ

7SR

Zolltarifnummer

85364900

Ursprungsland

IN

Nettogewicht

kg