{"product_id":"dyness-stack-280-base-cover-extension-kit-c","title":"Dyness Stack 280 Base \u0026 Cover Kit C","description":"\u003cdiv class=\"product-section\"\u003e\n\n  \u003cp class=\"p4\"\u003e\n    The \u003cstrong\u003eDyness Stack 280 Base \u0026 Cover Extension Kit C\u003c\/strong\u003e (Package C) is the required expansion set for the STACK280 battery system when more than \u003cstrong\u003e8 battery modules\u003c\/strong\u003e are installed. From 9 modules onwards, batteries must be distributed across two columns. The kit includes an \u003cstrong\u003eExpansionBase\u003c\/strong\u003e and an \u003cstrong\u003eExpansion Cover\u003c\/strong\u003e for the second column, together with all necessary series and communication cables to correctly connect both columns. The Expansion Cover is exclusively compatible with the expansion-labelled Base. During installation, the standard Base of the first column must be converted into an ExpansionBase.\n  \u003c\/p\u003e\n\n  \u003cul class=\"usp-list\"\u003e\n    \u003cli\u003e\u003cstrong\u003eRequired for 9–15 modules:\u003c\/strong\u003e enables a dual-column configuration for systems with more than 8 Stack 280 battery modules.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eComplete cable set included:\u003c\/strong\u003e series cables (UL10269, 50 mm²) and communication cables for connecting both clusters.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eMatching dimensions:\u003c\/strong\u003e ExpansionBase 770 × 425 × 133 mm and Expansion Cover 770 × 425 × 80 mm – identical footprint to the standard BDU base.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003ePlug-and-play expansion:\u003c\/strong\u003e all mounting hardware (bolts, screws, brackets, cable terminals) included.\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eSystem-specific:\u003c\/strong\u003e exclusively designed for use with the Dyness Stack 280 BDU \u0026 Base and Stack 280 battery modules.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eTechnical notes for installers\u003c\/h2\u003e\n  \u003cp class=\"p4\"\u003e\n    The Extension Kit C is suitable for indoor use only (\u003cstrong\u003eIP20\u003c\/strong\u003e). When installing more than 8 modules, the standard Base of the main column must be converted into an ExpansionBase: the original panel, internal series lines and communication sockets are removed and an expansion label is applied. The ExpansionBase of the second column is anchored with \u003cstrong\u003eM12×100 expansion bolts\u003c\/strong\u003e. Series power cables and communication lines are routed through the side cover and grooves between both columns. The negative connector of the series cable connects to the Base of the main column; the positive connector to the Base of the expansion column. Battery modules are stacked on the new Base and secured with four \u003cstrong\u003eM5×30 screws\u003c\/strong\u003e. The \u003cstrong\u003eExpansion Cover\u003c\/strong\u003e is placed on top of the expansion column as the final closure and must only be used with an expansion-labelled Base.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"alert-box\"\u003e\n    \u003cstrong\u003eNote:\u003c\/strong\u003e The Extension Kit C is only compatible with the Dyness STACK280 system and is exclusively intended for use when more than 8 battery modules are installed. The Dyness Stack 280 BDU \u0026 Base (Package A) and battery modules (Package B) are not included and are sold separately. The Expansion Cover must only be used with an expansion-labelled Base. Installation must be carried out by certified electricians in accordance with national standards.\n  \u003c\/div\u003e\n\n  \u003ctable\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth\u003eParameter\u003c\/th\u003e\n        \u003cth\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eExpansionBase dimensions (W × D × H)\u003c\/td\u003e\n        \u003ctd\u003e770 × 425 × 133 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eExpansion Cover dimensions (W × D × H)\u003c\/td\u003e\n        \u003ctd\u003e770 × 425 × 80 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eApplication range\u003c\/td\u003e\n        \u003ctd\u003e9–15 Stack 280 battery modules (two columns)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMax. modules per column\u003c\/td\u003e\n        \u003ctd\u003e8 (recommended)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeries cable type\u003c\/td\u003e\n        \u003ctd\u003eUL10269, 50 mm²\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eProtection class\u003c\/td\u003e\n        \u003ctd\u003eIP20 (indoor use only)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCompatibility\u003c\/td\u003e\n        \u003ctd\u003eExclusively Dyness Stack 280 BDU \u0026 Base + Stack 280 modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003cdiv class=\"cta-group\"\u003e\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0882\/5641\/4023\/files\/STACK280_Datasheet-EN-20250709.pdf\" class=\"cta-btn\" target=\"_blank\"\u003eDownload datasheet\u003c\/a\u003e\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0882\/5641\/4023\/files\/STACK280_User_Manual-EN-V0_2.pdf\" class=\"cta-btn\" target=\"_blank\"\u003eDownload user manual\u003c\/a\u003e\n    \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0882\/5641\/4023\/files\/Dyness_Stack_280_compatibility_list.pdf\" class=\"cta-btn\" target=\"_blank\"\u003eInverter compatibility list\u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\n    \u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003csummary itemprop=\"name\"\u003eWhat is included in the Dyness Stack 280 Base \u0026 Cover Extension Kit C package?\u003c\/summary\u003e\n      \u003cdiv class=\"accordion-content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003e\n          \u003cp\u003eThe package (Package C) contains the following items:\u003c\/p\u003e\n          \u003ctable\u003e\n            \u003ctbody\u003e\n              \u003ctr\u003e\n                \u003cth\u003eItem\u003c\/th\u003e\n                \u003cth\u003eQuantity\u003c\/th\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eExpansionBase (770 × 425 × 133 mm)\u003c\/td\u003e\n                \u003ctd\u003e1\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eExpansion Cover (770 × 425 × 80 mm)\u003c\/td\u003e\n                \u003ctd\u003e1\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eFlat-head Phillips screws M5×30\u003c\/td\u003e\n                \u003ctd\u003e4\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eCable terminals OT4-6\u003c\/td\u003e\n                \u003ctd\u003e2\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eCommunication cable between two clusters\u003c\/td\u003e\n                \u003ctd\u003e1\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eParallel communication cables\u003c\/td\u003e\n                \u003ctd\u003e2\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eSeries cables two clusters (UL10269, 50 mm²)\u003c\/td\u003e\n                \u003ctd\u003e2\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eFixing brackets\u003c\/td\u003e\n                \u003ctd\u003e2\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eExpansion bolts M6×80\u003c\/td\u003e\n                \u003ctd\u003e2\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003eExpansion bolts M12×100\u003c\/td\u003e\n                \u003ctd\u003e4\u003c\/td\u003e\n              \u003c\/tr\u003e\n              \u003ctr\u003e\n                \u003ctd\u003ePacking list\u003c\/td\u003e\n                \u003ctd\u003e1\u003c\/td\u003e\n              \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n          \u003c\/table\u003e\n          \u003cp\u003eThe Dyness Stack 280 BDU \u0026 Base (Package A) and battery modules (Package B) are not included and are sold separately.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003csummary itemprop=\"name\"\u003eWhen is the Extension Kit C required?\u003c\/summary\u003e\n      \u003cdiv class=\"accordion-content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003e\n          \u003cp\u003eThe Extension Kit C is required when more than 8 Stack 280 battery modules are installed. A single column is limited to a maximum of 8 modules (total height ±2208 mm with BDU). For 9 to 15 modules, batteries must be distributed across two columns. The kit provides the necessary ExpansionBase and Expansion Cover for the second column, as well as all series and communication cables to correctly connect both clusters. The maximum system size is 15 modules in series per cluster, with up to 12 clusters in parallel.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003csummary itemprop=\"name\"\u003eWhat are the installation requirements for the Extension Kit C?\u003c\/summary\u003e\n      \u003cdiv class=\"accordion-content\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cdiv itemprop=\"text\"\u003e\n          \u003cp\u003eInstallation must be carried out by certified electricians in accordance with national standards (e.g. BS 7671, IEC 60364). The standard Base of the main column must be converted into an ExpansionBase before installing the second column. The ExpansionBase of the second column is anchored with M12×100 expansion bolts. Series power cables and communication lines are routed through the side cover and grooves between both columns. The Expansion Cover is placed on top of the expansion column as the final closure and must only be used with an expansion-labelled Base. Minimum clearance above each cluster: 450 mm. If installing on an upper floor, a professional assessment of the floor's load-bearing capacity is required.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cp class=\"p4\"\u003e\n    View more products in our \u003ca href=\"https:\/\/www.shop-rebor.com\/en\/collections\/dyness-storage\" title=\"Dyness Storage\"\u003eDyness Storage collection\u003c\/a\u003e.\n  \u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"Dyness","offers":[{"title":"Default Title","offer_id":53543152714055,"sku":"STACK280-KIT-C","price":315.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0882\/5641\/4023\/files\/dyness_stack280_extension_kit_c.webp?v=1773839882","url":"https:\/\/www.shop-rebor.com\/en\/products\/dyness-stack-280-base-cover-extension-kit-c","provider":"Rebor B.V.","version":"1.0","type":"link"}