{"product_id":"7sr23031na770ca0","title":"7SR2303-1NA77-0CA0 Siemens","description":"\u003cp\u003eHIGH 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 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 . .\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":42861056393300,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/2986\/0180\/files\/05_01_2026_12_50_27_7SR2303_1NA77_0CA0_Siemens.png?v=1769205044","url":"https:\/\/catalog.industrialautomationco.com\/products\/7sr23031na770ca0","provider":"IAC Catalog","version":"1.0","type":"link"}