{"product_id":"abb-aurora-relay-filter-board-pn-3g74-99-1-pb-free-boost1-bulk-interface-refurbished","title":"ABB Aurora Relay + Filter Board | PN: 3G74-99-1 Pb-Free | For 3.0kW Inverters | Fixes Errors E013, E019, E023, E031, Riso Low | Refurbished","description":"\u003cp data-start=\"262\" data-end=\"552\" class=\"\"\u003eThis is an original \u003cstrong data-start=\"282\" data-end=\"306\"\u003eRelay + Filter Board\u003c\/strong\u003e for \u003cstrong data-start=\"311\" data-end=\"341\"\u003eABB Aurora 3.0kW inverters\u003c\/strong\u003e, marked \u003cstrong data-start=\"350\" data-end=\"371\"\u003e3G74-99-1 Pb-Free\u003c\/strong\u003e, manufactured using \u003cstrong data-start=\"392\" data-end=\"437\"\u003elead-free, environmentally safe soldering\u003c\/strong\u003e. It plays a key role in \u003cstrong data-start=\"462\" data-end=\"513\"\u003eDC input conditioning, BOOST voltage management\u003c\/strong\u003e, and \u003cstrong data-start=\"519\" data-end=\"551\"\u003erelay-based signal switching\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"554\" data-end=\"728\" class=\"\"\u003eEquipped with \u003cstrong data-start=\"568\" data-end=\"640\"\u003eferrite-core inductors, EMI-rated capacitors, and mid-current relays\u003c\/strong\u003e, this board ensures stable and filtered voltage is safely delivered to the power stage.\u003c\/p\u003e\n\u003cp data-start=\"730\" data-end=\"892\" class=\"\"\u003e🛠️ \u003cstrong data-start=\"734\" data-end=\"791\"\u003eCommon inverter issues resolved by this board include\u003c\/strong\u003e:\u003cbr data-start=\"792\" data-end=\"795\"\u003e\u003cstrong data-start=\"795\" data-end=\"821\"\u003eE013, E019, E023, E031\u003c\/strong\u003e, and \u003cstrong data-start=\"827\" data-end=\"839\"\u003eRiso Low\u003c\/strong\u003e\u003cbr data-start=\"839\" data-end=\"842\"\u003e(\u003cem data-start=\"843\" data-end=\"891\"\u003ealso displayed as 013, 019, 023, 031, Riso Low\u003c\/em\u003e)\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"971\" class=\"\"\u003e🔄 \u003cstrong data-start=\"897\" data-end=\"911\"\u003eCondition:\u003c\/strong\u003e Refurbished — professionally cleaned, tested, and restored.\u003c\/p\u003e\n\u003ch4 data-start=\"978\" data-end=\"1022\" class=\"\"\u003e\u003cstrong data-start=\"983\" data-end=\"1020\"\u003e🔧 Technical Features \u0026amp; Markings:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"1025\" data-end=\"1061\"\u003e\n\u003cstrong data-start=\"1025\" data-end=\"1039\"\u003ePCB Label:\u003c\/strong\u003e 3G74-99-1 (Pb-free)\u003c\/li\u003e\n\u003cli data-start=\"1064\" data-end=\"1123\"\u003e\n\u003cstrong data-start=\"1064\" data-end=\"1084\"\u003eCompatible with:\u003c\/strong\u003e \u003cstrong data-start=\"1085\" data-end=\"1121\"\u003eABB Aurora 3.0kW inverter models\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1126\" data-end=\"1179\"\u003e\n\u003cstrong data-start=\"1126\" data-end=\"1149\"\u003ePower Input Labels:\u003c\/strong\u003e BOOST1, BOOST2, +BULK, N.C.\u003c\/li\u003e\n\u003cli data-start=\"1182\" data-end=\"1207\"\u003e\n\u003cstrong data-start=\"1182\" data-end=\"1197\"\u003eConnectors:\u003c\/strong\u003e J4, J27\u003c\/li\u003e\n\u003cli data-start=\"1210\" data-end=\"1445\"\u003e\n\u003cstrong data-start=\"1210\" data-end=\"1229\"\u003eKey Components:\u003c\/strong\u003e\u003cbr data-start=\"1229\" data-end=\"1232\"\u003e• Ferrite-core inductors\u003cbr data-start=\"1258\" data-end=\"1261\"\u003e• Blue X2\/Y2-class capacitors\u003cbr data-start=\"1292\" data-end=\"1295\"\u003e• 2x black mid-current relays\u003cbr data-start=\"1326\" data-end=\"1329\"\u003e• SMD resistor marked “220”\u003cbr data-start=\"1358\" data-end=\"1361\"\u003e• High-current copper traces on rear\u003cbr data-start=\"1399\" data-end=\"1402\"\u003e• SMD ICs, zener diodes, signal drivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1452\" data-end=\"1474\" class=\"\"\u003e✅ Key Benefits:\u003c\/h4\u003e\n\u003cp data-start=\"1475\" data-end=\"1762\" class=\"\"\u003e✔ Solves frequent inverter faults: \u003cstrong data-start=\"1510\" data-end=\"1524\"\u003eE013 \/ 013\u003c\/strong\u003e, \u003cstrong data-start=\"1526\" data-end=\"1540\"\u003eE019 \/ 019\u003c\/strong\u003e, \u003cstrong data-start=\"1542\" data-end=\"1556\"\u003eE023 \/ 023\u003c\/strong\u003e, \u003cstrong data-start=\"1558\" data-end=\"1572\"\u003eE031 \/ 031\u003c\/strong\u003e, \u003cstrong data-start=\"1574\" data-end=\"1586\"\u003eRiso Low\u003c\/strong\u003e\u003cbr data-start=\"1586\" data-end=\"1589\"\u003e✔ Designed for safe high-voltage signal routing\u003cbr data-start=\"1636\" data-end=\"1639\"\u003e✔ Ensures proper relay triggering and BOOST voltage regulation\u003cbr data-start=\"1701\" data-end=\"1704\"\u003e✔ Restores stable operation to aging or faulty inverters\u003c\/p\u003e\n\u003cp data-start=\"1769\" data-end=\"1984\" class=\"\"\u003e📦 \u003cstrong data-start=\"1772\" data-end=\"1785\"\u003eIncludes:\u003c\/strong\u003e Relay + Filter board with all mounted components\u003cbr data-start=\"1834\" data-end=\"1837\"\u003e⚖️ \u003cstrong data-start=\"1840\" data-end=\"1859\"\u003eApprox. weight:\u003c\/strong\u003e 1kg\u003cbr data-start=\"1863\" data-end=\"1866\"\u003e🛠️ \u003cstrong data-start=\"1870\" data-end=\"1887\"\u003eInstallation:\u003c\/strong\u003e Slot-in replacement (qualified technician recommended)\u003cbr data-start=\"1942\" data-end=\"1945\"\u003e🏷️ \u003cstrong data-start=\"1949\" data-end=\"1963\"\u003eCondition:\u003c\/strong\u003e Refurbished \u0026amp; tested\u003c\/p\u003e\n\u003cp data-start=\"1986\" data-end=\"2111\" class=\"\"\u003e🚀 \u003cstrong data-start=\"1989\" data-end=\"2111\"\u003eFix common Aurora 3.0kW inverter failures and ensure long-term reliability with this original ABB relay\/filter module.\u003c\/strong\u003e\u003c\/p\u003e","brand":"ABB Aurora parts","offers":[{"title":"Default Title","offer_id":51643304509773,"sku":"","price":170.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/3274\/3245\/files\/photo_2025-05-12_09-34-16.jpg?v=1747032601","url":"https:\/\/greenenergy-repair.com\/pl\/products\/abb-aurora-relay-filter-board-pn-3g74-99-1-pb-free-boost1-bulk-interface-refurbished","provider":"Green Energy","version":"1.0","type":"link"}