{"product_id":"sigenergy-sigenstack-1c-battery-controller-bst-11140002","title":"Sigenergy SigenStack 1C Battery Controller BST | 11140002","description":"\u003c!-- SEO Product Name: Sigenergy SigenStack 1C Battery Controller BST | 11140002 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eSigenergy SigenStack BC M2-1C-BST\u003c\/strong\u003e is the \u003cstrong\u003ebattery controller for 1C SigenStack systems\u003c\/strong\u003e, with an \u003cstrong\u003eintegrated DC-DC boost converter module (BC-BST)\u003c\/strong\u003e. It sits on top of the Main stack and links the \u003cstrong\u003eSigenStack BAT 12.0 battery modules\u003c\/strong\u003e to the \u003cstrong\u003eSigen C\u0026amp;I Hybrid Inverter\u003c\/strong\u003e, handling \u003cstrong\u003ebattery charge and discharge control\u003c\/strong\u003e and \u003cstrong\u003eCAN communication\u003c\/strong\u003e with the inverter.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eRated for \u003cstrong\u003e314 A nominal battery current\u003c\/strong\u003e and a wide \u003cstrong\u003e550 to 1,100 V operating range\u003c\/strong\u003e, it supports \u003cstrong\u003e4 to 21 modules\u003c\/strong\u003e per system. The \u003cstrong\u003eBST version\u003c\/strong\u003e is the controller Sigenergy specifies for \u003cstrong\u003ePV-connected systems\u003c\/strong\u003e and most scenarios beyond simple on-grid storage, and the \u003cstrong\u003eIP66-rated\u003c\/strong\u003e enclosure suits indoor or outdoor sites.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px -4px 24px -4px;\"\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003e314 A\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eNominal battery current\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003e180 A\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eMax. current to \/ from inverter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003e550–1,100 V\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eOperating voltage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003e4–21\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eModules per system\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003e60 kg\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eWeight\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; min-width:130px; background:#E6F4F3; border:1px solid #008377CF; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF;\"\u003eIP66\u003c\/div\u003e\n\u003cdiv style=\"font-size:12.5px; color:#4A4A4A; margin-top:4px;\"\u003eSystem protection\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E6F4F3; border-left:4px solid #008377CF; border-radius:0 6px 6px 0; padding:14px 18px; margin:0 0 16px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; font-size:14px; color:#008377CF; margin-bottom:4px;\"\u003eGood to Know\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#333;\"\u003e\n\u003cstrong\u003eWhy BST?\u003c\/strong\u003e Sigenergy states the non-BST controller only suits on-grid systems with \u003cstrong\u003e20 or more modules\u003c\/strong\u003e under \u003cstrong\u003e380\/400 V\u003c\/strong\u003e grid voltage and \u003cstrong\u003eno PV\u003c\/strong\u003e; other scenarios need the \u003cstrong\u003eBST model\u003c\/strong\u003e. The installation guide also lists BC-BST where the \u003cstrong\u003eAC line voltage is above 400 V\u003c\/strong\u003e, for \u003cstrong\u003ePV and storage wiring\u003c\/strong\u003e, and for pure storage systems connected to Sigen \u003cstrong\u003eHYA\u003c\/strong\u003e (with 19 or fewer battery modules) or \u003cstrong\u003eHYB\u003c\/strong\u003e series inverters.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:0 6px 6px 0; padding:14px 18px; margin:0 0 16px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; font-size:14px; color:#E0942A; margin-bottom:4px;\"\u003ePlease Note\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#333;\"\u003e\n\u003cstrong\u003eController only.\u003c\/strong\u003e It mounts on the \u003cstrong\u003eBase MAIN-1C (11180006)\u003c\/strong\u003e and needs \u003cstrong\u003eBAT 12.0\u003c\/strong\u003e modules and a compatible \u003cstrong\u003eSigen C\u0026amp;I Hybrid Inverter\u003c\/strong\u003e, all \u003cstrong\u003esupplied separately\u003c\/strong\u003e. Sigenergy specifies this 1C controller with \u003cstrong\u003e1C bases\u003c\/strong\u003e, so keep all components in the same rate class.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEC; border-left:4px solid #D32F2F; border-radius:0 6px 6px 0; padding:14px 18px; margin:0 0 16px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; font-size:14px; color:#D32F2F; margin-bottom:4px;\"\u003eImportant Safety Information\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#333;\"\u003eSigenStack is \u003cstrong\u003eheavy, high-voltage DC equipment\u003c\/strong\u003e (operating range up to \u003cstrong\u003e1,100 V\u003c\/strong\u003e; each BAT 12.0 module weighs \u003cstrong\u003e105 kg\u003c\/strong\u003e). It must be installed and commissioned by a \u003cstrong\u003ecompetent, qualified electrician\u003c\/strong\u003e in line with \u003cstrong\u003eBS 7671\u003c\/strong\u003e, the Sigenergy installation guide and local building and fire-protection requirements (Sigenergy references \u003cstrong\u003eNFPA 855\u003c\/strong\u003e). The installation guide requires a \u003cstrong\u003elevel, solid, non-combustible surface\u003c\/strong\u003e with sufficient load-bearing capacity, and a \u003cstrong\u003elifting plan\u003c\/strong\u003e prepared for the modules. Do not use a battery module that has been dropped.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#008377CF; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:14px; margin:0 0 24px 0;\"\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eIntegrated boost converter\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eThe \u003cstrong\u003eDC-DC BC-BST boost module\u003c\/strong\u003e is built in, enabling \u003cstrong\u003eDC-coupled PV + ESS\u003c\/strong\u003e systems without a separate converter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003e1C high-rate operation\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eRated at \u003cstrong\u003e314 A\u003c\/strong\u003e nominal battery charge and discharge current for \u003cstrong\u003e1C high-rate\u003c\/strong\u003e commercial storage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eWide voltage range\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eOperates across \u003cstrong\u003e550 to 1,100 V\u003c\/strong\u003e and passes up to \u003cstrong\u003e180 A\u003c\/strong\u003e to and from the inverter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eScalable from 4 to 21 modules\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eManages \u003cstrong\u003e4 to 21 BAT 12.0 modules\u003c\/strong\u003e per system, from \u003cstrong\u003e48.24 kWh\u003c\/strong\u003e up to \u003cstrong\u003e253 kWh\u003c\/strong\u003e, using Main and Sub stacks.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eCAN communication\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003eTalks to the \u003cstrong\u003eSigen C\u0026amp;I Hybrid Inverter\u003c\/strong\u003e over \u003cstrong\u003eCAN\u003c\/strong\u003e, with real-time monitoring through \u003cstrong\u003eSigen Cloud\u003c\/strong\u003e and commissioning via the \u003cstrong\u003emySigen app\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:8px; padding:16px 18px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eRobust and serviceable\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#444; line-height:1.55;\"\u003e\n\u003cstrong\u003eIP66\u003c\/strong\u003e enclosure, \u003cstrong\u003eSmart Air Cooling\u003c\/strong\u003e, an onboard \u003cstrong\u003edisconnecting switch\u003c\/strong\u003e and \u003cstrong\u003epower button\u003c\/strong\u003e, at just \u003cstrong\u003e60 kg\u003c\/strong\u003e for the controller unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#008377CF; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 20px 0; border:1px solid #008377CF; border-radius:6px; overflow:hidden; font-size:14.5px;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:14.5px; padding:9px 14px;\"\u003eProduct Details\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eManufacturer\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenergy\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eModel\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenStack BC M2-1C-BST\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eManufacturer part number\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e11140002\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eFunction\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eBattery controller including DC-DC BC-BST boost converter module\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eDimensions (W \/ H \/ D)\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e770 \/ 248 \/ 363 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eWeight\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e60 kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eMounting\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eOn the SigenStack Base MAIN-1C at the top of the Main stack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 20px 0; border:1px solid #008377CF; border-radius:6px; overflow:hidden; font-size:14.5px;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:14.5px; padding:9px 14px;\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eMax. output current (to inverter)\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e180 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eMax. input current (from inverter)\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e180 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eOperating voltage range\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e550 to 1,100 V\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eNominal charge \/ discharge current of battery\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e314 A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eSystem configuration range\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e4 to 21 modules (max. 253 kWh)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eCommunication\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eCAN\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 20px 0; border:1px solid #008377CF; border-radius:6px; overflow:hidden; font-size:14.5px;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:14.5px; padding:9px 14px;\"\u003eSystem Compatibility\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eCompatible inverter\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigen C\u0026amp;I Hybrid Inverter series\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eBattery module\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenStack BAT 12.0 – LiFePO4, 314 Ah cell, 12.06 kWh\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eMain stack base\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenStack Base MAIN-1C (11180006)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eSub stack base\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenStack Base SUB-1C (11180007)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eSub stack cover\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSigenStack Cover\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 20px 0; border:1px solid #008377CF; border-radius:6px; overflow:hidden; font-size:14.5px;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:14.5px; padding:9px 14px;\"\u003eEnvironmental (SigenStack System)\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eSystem ingress protection\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eIP66\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eStorage temperature\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e-25 to 60°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eOperating temperature\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e-20 to 55°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eRelative humidity\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e0% to 100%\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eMax. operating altitude\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e4,000 m (derating from 2,000 m)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eCooling\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eSmart air cooling\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eNoise\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003e\u0026lt; 65 dB\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"padding:10px 14px; font-weight:700; color:#333; flex:0 0 40%; min-width:160px; box-sizing:border-box;\"\u003eStandards\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 14px; color:#333; flex:1 1 200px; box-sizing:border-box;\"\u003eIEC\/EN 60730-1, UN 38.3, IEC\/EN 62619, IEC\/EN 63056, IEC\/EN 62040, UL9540A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#008377CF; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 8px 0;\"\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eWhat does BST mean?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eBST denotes the \u003cstrong\u003eintegrated DC-DC boost converter module\u003c\/strong\u003e. Sigenergy states the non-BST controller is only for on-grid systems with \u003cstrong\u003e20 or more modules\u003c\/strong\u003e under \u003cstrong\u003e380\/400 V\u003c\/strong\u003e and \u003cstrong\u003eno PV\u003c\/strong\u003e; for other scenarios use the \u003cstrong\u003eBST model\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eHow many battery modules can it control?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eA SigenStack system supports \u003cstrong\u003e4 to 21 BAT 12.0 modules\u003c\/strong\u003e (up to \u003cstrong\u003e253 kWh\u003c\/strong\u003e). Each Main or Sub stack holds up to 7 modules.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eWhich inverters does it work with?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eIt is designed for the \u003cstrong\u003eSigen C\u0026amp;I Hybrid Inverter\u003c\/strong\u003e series and communicates over \u003cstrong\u003eCAN\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eWhat does it mount on?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eIt fits on the \u003cstrong\u003eSigenStack Base MAIN-1C (11180006)\u003c\/strong\u003e at the top of the Main stack. Sub stacks use \u003cstrong\u003eBase SUB-1C (11180007)\u003c\/strong\u003e with a \u003cstrong\u003eSigenStack Cover\u003c\/strong\u003e instead.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eWhat cabling does the installer need to supply?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eSigenergy specifies \u003cstrong\u003eoutdoor single-core copper power cable of 50 to 70 mm²\u003c\/strong\u003e (11 to 22 mm outer diameter) between the inverter and controller, plus a \u003cstrong\u003ePE cable of at least 25 mm²\u003c\/strong\u003e for the Base MAIN. The \u003cstrong\u003esignal cable\u003c\/strong\u003e connects the controller to the inverter.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:15px; padding:12px 16px; cursor:pointer;\"\u003eDo UK installations need DNO approval?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px; font-size:15px; color:#333; line-height:1.65; background:#fff;\"\u003eCommercial solar and storage systems of this size are normally connected under \u003cstrong\u003eEngineering Recommendation G99\u003c\/strong\u003e, so the installer should speak to the \u003cstrong\u003eDNO\u003c\/strong\u003e before installing and check the requirements for the chosen Sigen inverter.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sigenergy","offers":[{"title":"Default Title","offer_id":66076633956701,"sku":"SIG-11140002","price":5999.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Sigenergy-SigenStack-BC-M2-0-5C-BST.png?v=1772108849","url":"https:\/\/qualityheating.co.uk\/products\/sigenergy-sigenstack-1c-battery-controller-bst-11140002","provider":"AIZO Quality Heating","version":"1.0","type":"link"}