{"product_id":"elnuimex-4-string-pv-combiner-box-ip65-metal-enclosure-with-20a-fuses-63a-main-breaker","title":"ELNUIMEX 4-String PV Combiner Box — IP65 Metal Enclosure with 20A Fuses \u0026 63A Main Breaker","description":"\u003cp\u003e\u003cstrong\u003eELNUIMEX 4-string PV Combiner Box is a weatherproof metal enclosure that safely joins up to four solar panel strings, with individual 20A fuses, a 63A main circuit breaker and built-in lightning surge protection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact combiner organizes PV array outputs into a single protected feed for inverters or charge controllers. Built from metal with a spray-plastic finish and rated IP65, it keeps connections dry and secure outdoors. Pre-wired inputs, included MC4-style connectors and a keyed lock simplify installation and maintenance while helping isolate faults without shutting down an entire array.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this combiner box protect my solar array?\u003c\/h3\u003e\n\u003cp\u003eThe unit combines overcurrent protection, a main breaker and a high-voltage arrester to reduce the risk of damage from faults and transient surges. Protection levels are chosen to suit most small commercial and residential PV setups.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour independent 20A fuses isolate and protect each string from overcurrent.\u003c\/li\u003e\n  \u003cli\u003eA 63A-rated circuit breaker provides main-line overload and manual disconnect capability.\u003c\/li\u003e\n  \u003cli\u003eIntegrated lightning\/surge arrester mitigates transient high-voltage events from strikes or switching.\u003c\/li\u003e\n  \u003cli\u003e9 AWG internal wiring and robust components reduce heat and connection failures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes it suitable for outdoor installation?\u003c\/h3\u003e\n\u003cp\u003eThe enclosure is engineered to stand up to weather and UV exposure while keeping electrical connections safe and accessible. IP65 ingress protection and a durable finish help prevent corrosion and water ingress.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP65-rated metal box with spray-plastic coating resists dust and water jets.\u003c\/li\u003e\n  \u003cli\u003ePre-sealed cable entries and gaskets maintain enclosure integrity.\u003c\/li\u003e\n  \u003cli\u003eKey-lockable door secures terminals from tampering and accidental access.\u003c\/li\u003e\n  \u003cli\u003eDurable solar-rated wires and connectors resist sunlight and mechanical wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and routine maintenance?\u003c\/h3\u003e\n\u003cp\u003eELNUIMEX designed the box for quick, straightforward setup: pre-wired internal connections and plug-and-play connectors reduce on-site wiring time. The keyed lock and organized layout also make selective servicing fast and safe.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAll internal wiring pre-installed; four pairs of connectors included for direct PV inputs.\u003c\/li\u003e\n  \u003cli\u003eStandard mounting footprint fits regular walls, posts or racks with basic tools.\u003c\/li\u003e\n  \u003cli\u003eKeyed door allows controlled access for fuse replacement and breaker operation.\u003c\/li\u003e\n  \u003cli\u003eClear layout minimizes downtime by isolating only affected strings during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it work with both grid-tied and off-grid systems?\u003c\/h3\u003e\n\u003cp\u003eYes — the combiner is compatible with small to medium grid-connected and off-grid PV installations. It aggregates string outputs into a single protected feed that connects to inverters or charge controllers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for string arrays where single-string currents do not exceed 32A each.\u003c\/li\u003e\n  \u003cli\u003eMain breaker and fuses sized for common residential and light commercial inverters.\u003c\/li\u003e\n  \u003cli\u003eSurge arrestor adds a layer of protection when systems are exposed to lightning-prone areas.\u003c\/li\u003e\n  \u003cli\u003eWorks with most MC4-style solar connectors and standard PV components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Installers, system integrators and homeowners looking to centralize and protect multiple PV strings will find this combiner box practical and reliable. It is aimed at small commercial systems, residential arrays and off-grid setups where straightforward, weatherproof string aggregation and overcurrent plus surge protection are needed. If you need a compact, pre-wired solution with clear serviceability and keyed access for safe maintenance, the ELNUIMEX 4-String PV Combiner Box is designed for those requirements.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this combiner box handle multiple 10kW arrays?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It suits small-to-medium arrays; ensure combined current stays below the 63A main breaker and each string under 32A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the enclosure suitable for outdoor rooftop use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the metal IP65 enclosure with gasketed door and spray-plastic finish is built for outdoor exposure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ELNUIMEX","offers":[{"title":"Default Title","offer_id":56801465434452,"sku":"B0D7Q4RPDY","price":165.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/elnuimex-front-panel.jpg?v=1786742512","url":"https:\/\/gardenluxe.co.uk\/products\/elnuimex-4-string-pv-combiner-box-ip65-metal-enclosure-with-20a-fuses-63a-main-breaker","provider":"Gardenluxe Uk","version":"1.0","type":"link"}