{"product_id":"refu-elektronik-sv27680b-ac-emc-filter-line-conditioning-board-photovoltaic-inverter-module","title":"REFU Elektronik SV27680B – AC EMC Filter \u0026 Line Conditioning Board | Photovoltaic Inverter Module","description":"\u003cdiv class=\"text-base my-auto mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"0607f5a9-373a-4114-a94d-c61ea76aa293\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"145\" data-end=\"305\"\u003eThe \u003cstrong data-start=\"149\" data-end=\"177\"\u003eREFU Elektronik SV27680B\u003c\/strong\u003e is an original electronic module designed for \u003cstrong data-start=\"224\" data-end=\"270\"\u003eEMI\/EMC filtering and AC line conditioning\u003c\/strong\u003e in REFUsol photovoltaic inverters.\u003c\/p\u003e\n\u003cp data-start=\"307\" data-end=\"601\"\u003eInstalled in the \u003cstrong data-start=\"324\" data-end=\"350\"\u003egrid interface section\u003c\/strong\u003e, this board plays a critical role in ensuring \u003cstrong data-start=\"397\" data-end=\"468\"\u003epower quality, electromagnetic compatibility, and system protection\u003c\/strong\u003e. It reduces high-frequency interference generated by the inverter and protects internal circuits from voltage spikes and transients.\u003c\/p\u003e\n\u003cp data-start=\"603\" data-end=\"742\"\u003eIn addition to filtering functions, the board integrates an \u003cstrong data-start=\"663\" data-end=\"699\"\u003eauxiliary switching power supply\u003c\/strong\u003e, supporting internal inverter electronics.\u003c\/p\u003e\n\u003chr data-start=\"744\" data-end=\"747\"\u003e\n\u003ch3 data-start=\"749\" data-end=\"770\"\u003e⚙️ Main Functions\u003c\/h3\u003e\n\u003cul data-start=\"772\" data-end=\"1052\"\u003e\n\u003cli data-start=\"772\" data-end=\"846\"\u003eEMI\/EMC filtering on the AC line (\u003cstrong data-start=\"808\" data-end=\"843\"\u003ecommon mode + differential mode\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli data-start=\"847\" data-end=\"902\"\u003eReduction of conducted interference toward the grid\u003c\/li\u003e\n\u003cli data-start=\"903\" data-end=\"958\"\u003eProtection against overvoltage and transient spikes\u003c\/li\u003e\n\u003cli data-start=\"959\" data-end=\"1004\"\u003eAC voltage conditioning and stabilization\u003c\/li\u003e\n\u003cli data-start=\"1005\" data-end=\"1052\"\u003eSupport for auxiliary power supply circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1054\" data-end=\"1057\"\u003e\n\u003ch3 data-start=\"1059\" data-end=\"1084\"\u003e🔍 Technical Features\u003c\/h3\u003e\n\u003cul data-start=\"1086\" data-end=\"1456\"\u003e\n\u003cli data-start=\"1086\" data-end=\"1138\"\u003eIndustrial multi-layer PCB with high reliability\u003c\/li\u003e\n\u003cli data-start=\"1139\" data-end=\"1200\"\u003eCombined EMI filter topology (\u003cstrong data-start=\"1171\" data-end=\"1197\"\u003einductive + capacitive\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli data-start=\"1201\" data-end=\"1250\"\u003eIntegrated surge protection stage (MOV-based)\u003c\/li\u003e\n\u003cli data-start=\"1251\" data-end=\"1300\"\u003eBuilt-in auxiliary \u003cstrong data-start=\"1272\" data-end=\"1298\"\u003eswitching power module\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1301\" data-end=\"1352\"\u003eScrew terminals for high-current AC connections\u003c\/li\u003e\n\u003cli data-start=\"1353\" data-end=\"1407\"\u003eComponents sized for industrial power applications\u003c\/li\u003e\n\u003cli data-start=\"1408\" data-end=\"1456\"\u003eEuropean manufacturing (\u003cstrong data-start=\"1434\" data-end=\"1453\"\u003eMade in Germany\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1458\" data-end=\"1461\"\u003e\n\u003ch3 data-start=\"1463\" data-end=\"1485\"\u003e🔧 Main Components\u003c\/h3\u003e\n\u003cul data-start=\"1487\" data-end=\"1832\"\u003e\n\u003cli data-start=\"1487\" data-end=\"1540\"\u003eToroidal copper inductors → common-mode filtering\u003c\/li\u003e\n\u003cli data-start=\"1541\" data-end=\"1590\"\u003eFilm capacitors (Class X\/Y) → EMI suppression\u003c\/li\u003e\n\u003cli data-start=\"1591\" data-end=\"1629\"\u003eVaristors (MOV) → surge protection\u003c\/li\u003e\n\u003cli data-start=\"1630\" data-end=\"1684\"\u003eIntegrated switching PSU module → auxiliary supply\u003c\/li\u003e\n\u003cli data-start=\"1685\" data-end=\"1729\"\u003ePower capacitors → voltage stabilization\u003c\/li\u003e\n\u003cli data-start=\"1730\" data-end=\"1779\"\u003eScrew terminals → AC input\/output connections\u003c\/li\u003e\n\u003cli data-start=\"1780\" data-end=\"1832\"\u003eSMD components → signal conditioning and control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1834\" data-end=\"1837\"\u003e\n\u003ch3 data-start=\"1839\" data-end=\"1870\"\u003e🔌 Role Inside the Inverter\u003c\/h3\u003e\n\u003cp data-start=\"1872\" data-end=\"1958\"\u003eThis board is installed between the \u003cstrong data-start=\"1908\" data-end=\"1947\"\u003epower stage and the grid connection\u003c\/strong\u003e, where it:\u003c\/p\u003e\n\u003cul data-start=\"1960\" data-end=\"2216\"\u003e\n\u003cli data-start=\"1960\" data-end=\"2022\"\u003eEnsures \u003cstrong data-start=\"1970\" data-end=\"2020\"\u003eelectromagnetic compatibility (EMC compliance)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2023\" data-end=\"2054\"\u003eReduces conducted emissions\u003c\/li\u003e\n\u003cli data-start=\"2055\" data-end=\"2107\"\u003eProtects the inverter from external disturbances\u003c\/li\u003e\n\u003cli data-start=\"2108\" data-end=\"2153\"\u003eImproves system stability and reliability\u003c\/li\u003e\n\u003cli data-start=\"2154\" data-end=\"2216\"\u003eContributes to compliance with CE and industrial standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2218\" data-end=\"2221\"\u003e\n\u003ch3 data-start=\"2223\" data-end=\"2245\"\u003e⚠️ Technical Notes\u003c\/h3\u003e\n\u003cul data-start=\"2247\" data-end=\"2504\"\u003e\n\u003cli data-start=\"2247\" data-end=\"2281\"\u003e❌ Not a control or logic board\u003c\/li\u003e\n\u003cli data-start=\"2282\" data-end=\"2352\"\u003e❌ Not a power conversion board (does not perform DC\/AC conversion)\u003c\/li\u003e\n\u003cli data-start=\"2353\" data-end=\"2393\"\u003e✔ AC filtering and protection module\u003c\/li\u003e\n\u003cli data-start=\"2394\" data-end=\"2453\"\u003e✔ Includes auxiliary power section (secondary function)\u003c\/li\u003e\n\u003cli data-start=\"2454\" data-end=\"2504\"\u003e✔ Works together with power and control boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2506\" data-end=\"2509\"\u003e\n\u003ch3 data-start=\"2511\" data-end=\"2531\"\u003e⚡ Typical Faults\u003c\/h3\u003e\n\u003cul data-start=\"2533\" data-end=\"2731\"\u003e\n\u003cli data-start=\"2533\" data-end=\"2577\"\u003eIncreased electrical noise or EMC issues\u003c\/li\u003e\n\u003cli data-start=\"2578\" data-end=\"2605\"\u003eGrid disturbance errors\u003c\/li\u003e\n\u003cli data-start=\"2606\" data-end=\"2642\"\u003eDamaged MOVs due to surge events\u003c\/li\u003e\n\u003cli data-start=\"2643\" data-end=\"2698\"\u003eDegraded capacitors affecting filtering performance\u003c\/li\u003e\n\u003cli data-start=\"2699\" data-end=\"2731\"\u003eAuxiliary supply instability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2733\" data-end=\"2736\"\u003e\n\u003ch3 data-start=\"2738\" data-end=\"2757\"\u003e📊 Applications\u003c\/h3\u003e\n\u003cul data-start=\"2759\" data-end=\"2905\"\u003e\n\u003cli data-start=\"2759\" data-end=\"2793\"\u003eREFUsol photovoltaic inverters\u003c\/li\u003e\n\u003cli data-start=\"2794\" data-end=\"2828\"\u003eIndustrial solar power systems\u003c\/li\u003e\n\u003cli data-start=\"2829\" data-end=\"2865\"\u003eGrid-connected power electronics\u003c\/li\u003e\n\u003cli data-start=\"2866\" data-end=\"2905\"\u003eEMC compliance and filtering stages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2907\" data-end=\"2910\"\u003e\n\u003ch3 data-start=\"2912\" data-end=\"2936\"\u003e📦 Product Condition\u003c\/h3\u003e\n\u003cul data-start=\"2938\" data-end=\"3048\"\u003e\n\u003cli data-start=\"2938\" data-end=\"2979\"\u003eElectronic board (used \/ refurbished)\u003c\/li\u003e\n\u003cli data-start=\"2980\" data-end=\"3006\"\u003eTested (if applicable)\u003c\/li\u003e\n\u003cli data-start=\"3007\" data-end=\"3048\"\u003eSupplied as a professional spare part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3050\" data-end=\"3053\"\u003e\n\u003ch3 data-start=\"3055\" data-end=\"3069\"\u003e💡 Summary\u003c\/h3\u003e\n\u003cp data-start=\"3071\" data-end=\"3172\"\u003eThe \u003cstrong data-start=\"3075\" data-end=\"3092\"\u003eREFU SV27680B\u003c\/strong\u003e is an essential \u003cstrong data-start=\"3109\" data-end=\"3154\"\u003eAC-side EMC filter and conditioning board\u003c\/strong\u003e, responsible for:\u003c\/p\u003e\n\u003cp data-start=\"3174\" data-end=\"3339\"\u003e✔ Reducing electromagnetic interference\u003cbr data-start=\"3213\" data-end=\"3216\"\u003e✔ Protecting the inverter and grid interface\u003cbr data-start=\"3260\" data-end=\"3263\"\u003e✔ Stabilizing AC output quality\u003cbr data-start=\"3294\" data-end=\"3297\"\u003e✔ Ensuring compliance with EMC standards\u003c\/p\u003e\n\u003cp data-start=\"3341\" data-end=\"3420\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e👉 A critical component for \u003cstrong data-start=\"3369\" data-end=\"3419\"\u003esafe, stable, and compliant inverter operation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Green Energy","offers":[{"title":"Default Title","offer_id":53837887865165,"sku":null,"price":200.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/3274\/3245\/files\/MG_5566.jpg?v=1777999077","url":"https:\/\/greenenergy-repair.com\/pl\/products\/refu-elektronik-sv27680b-ac-emc-filter-line-conditioning-board-photovoltaic-inverter-module","provider":"Green Energy","version":"1.0","type":"link"}