{"product_id":"bender-irdh275u-435-insulation-monitor-in-stock-usa","title":"Bender IRDH275U-435 ISOMETER Insulation Monitor AC\/DC IT Systems","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"19\" data-end=\"353\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe Bender IRDH275U-435 Insulation Monitor is a high-performance device designed to continuously monitor insulation resistance in unearthed (IT) electrical systems. It provides early detection of insulation faults to prevent equipment damage and ensure operational safety.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"486\" data-end=\"509\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 90.3986%; height: 333.095px;\" height=\"521\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eBender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003ePower Monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eIRDH275U-435\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eInsulation Monitors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eInsulation Monitoring Device (ISOMETER®)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eSystem Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e0–793 VAC \/ 0–650 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e88–264 VAC \/ 77–286 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e42–460 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eMeasurement Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eAMPPlus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eInsulation Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e1 kΩ to 10 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e2 Changeover Relays (Alarm 1 \/ Alarm 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eRS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eLCD with LED Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003eIEC 61557-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 43.5052%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 56.2532%; height: 19.5938px;\"\u003e1.5 lb (0.7 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eIRDH275U-435\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"385\" data-end=\"983\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe IRDH275U-435 is part of Bender’s ISOMETER® IRDH275 series, engineered for insulation monitoring in IT systems including AC, AC\/DC, and DC networks. It uses the patented AMPPlus measurement method, enabling accurate detection even in systems with high leakage capacitance or complex loads such as converters and drives. The device supports wide system voltages up to 793 VAC and 650 VDC, making it suitable for diverse industrial applications. It features adjustable alarm thresholds, integrated relay outputs, and communication capability via RS-485 for system integration and diagnostics.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"1085\" data-end=\"1102\"\u003eKey Features:\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"868\" data-end=\"1476\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1526\" data-start=\"876\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"849\" data-end=\"1479\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"876\" data-end=\"1457\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1579\" data-start=\"918\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"864\" data-end=\"1471\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"829\" data-end=\"1430\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1373\" data-start=\"784\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"868\" data-end=\"1446\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1355\" data-start=\"808\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1356\" data-start=\"810\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"753\" data-end=\"1340\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1357\" data-start=\"844\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"878\" data-end=\"1439\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1357\" data-start=\"771\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"798\" data-end=\"1362\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1030\" data-end=\"1627\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"953\" data-end=\"1631\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1702\" data-start=\"985\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"957\" data-end=\"1667\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1636\" data-start=\"944\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"866\" data-end=\"1451\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1483\" data-start=\"884\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"921\" data-end=\"1516\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1526\" data-start=\"933\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"939\" data-end=\"1545\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"897\" data-end=\"1497\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1554\" data-start=\"982\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"988\" data-end=\"1519\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"940\" data-end=\"1554\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1597\" data-start=\"952\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1598\" data-start=\"944\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"926\" data-end=\"1519\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1495\" data-start=\"907\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1568\" data-start=\"933\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"883\" data-end=\"1465\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"982\" data-end=\"1621\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1580\" data-start=\"963\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"920\" data-end=\"1561\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"971\" data-end=\"1566\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"974\" data-end=\"1572\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1050\" data-end=\"1674\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"862\" data-end=\"1423\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"960\" data-end=\"1593\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"908\" data-end=\"1450\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1640\" data-start=\"983\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1551\" data-start=\"923\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"970\" data-end=\"1607\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1608\" data-start=\"977\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1010\" data-end=\"1665\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1755\" data-start=\"1046\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1170\" data-end=\"1910\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1856\" data-start=\"1142\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"2117\" data-start=\"1158\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1936\" data-start=\"1075\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1904\" data-start=\"1088\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1946\" data-start=\"1064\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"2067\" data-start=\"1256\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1970\" data-start=\"1194\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1707\" data-start=\"1033\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1792\" data-start=\"1138\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1824\" data-start=\"1120\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1799\" data-start=\"1086\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1713\" data-start=\"1065\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1791\" data-start=\"1133\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1683\" data-start=\"1054\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1023\" data-end=\"1644\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1146\" data-end=\"1904\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1069\" data-end=\"1711\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1168\" data-end=\"1893\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1143\" data-end=\"1839\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1107\" data-end=\"1858\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"1154\" data-end=\"1871\"\u003e\n\u003cli data-section-id=\"4ycfxp\" data-start=\"1154\" data-end=\"1254\"\u003eInsulation Resistance Monitoring: Continuously measures insulation levels to detect faults early\u003c\/li\u003e\n\u003cli data-section-id=\"ga3pn2\" data-start=\"1255\" data-end=\"1351\"\u003eWide System Compatibility: Suitable for AC, DC, and mixed IT systems up to 793 VAC \/ 650 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"jpi812\" data-start=\"1352\" data-end=\"1450\"\u003eAMPPlus Measurement Method: Ensures accurate readings in systems with high leakage capacitance\u003c\/li\u003e\n\u003cli data-section-id=\"92ygzd\" data-start=\"1451\" data-end=\"1548\"\u003eAdjustable Alarm Thresholds: Configurable response values for prewarning and fault conditions\u003c\/li\u003e\n\u003cli data-section-id=\"miy43s\" data-start=\"1549\" data-end=\"1631\"\u003eDual Relay Outputs: Provides alarm and fault signaling via changeover contacts\u003c\/li\u003e\n\u003cli data-section-id=\"1q996ej\" data-start=\"1632\" data-end=\"1713\"\u003eCommunication Interface: RS-485 support for remote monitoring and integration\u003c\/li\u003e\n\u003cli data-section-id=\"1eojysd\" data-start=\"1714\" data-end=\"1781\"\u003eWide Supply Voltage Range: Operates on 88–264 VAC or 77–286 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"d6dq8h\" data-start=\"1782\" data-end=\"1871\"\u003eIntegrated Display and Indicators: LCD and LED indicators for real-time system status\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1873\" data-end=\"2015\"\u003eThe IRDH275U-435 delivers the reliability and precision required for insulation monitoring and fault detection in critical electrical systems.\u003c\/p\u003e\n\u003cul data-end=\"1426\" data-start=\"841\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1480\" data-start=\"902\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"871\" data-end=\"1482\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"909\" data-end=\"1577\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1590\" data-start=\"903\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"902\" data-end=\"1573\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"877\" data-end=\"1480\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"887\" data-end=\"1552\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1526\" data-start=\"891\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1499\" data-start=\"843\"\u003e\u003c\/ul\u003e","brand":"Bender","offers":[{"title":"Default Title","offer_id":51417765052714,"sku":"IRDH275U-435","price":3764.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/iqelectro_photo2_1_e8cf4c3c-9521-4501-bb55-c87284805876.png?v=1776025940","url":"https:\/\/iqelectro.com\/products\/bender-irdh275u-435-insulation-monitor-in-stock-usa","provider":"IQElectro","version":"1.0","type":"link"}