{"product_id":"fronius-eblu-essential-backup-load-unit-4-240-052","title":"Fronius EBLU Essential Backup Load Unit 4,240,052","description":"\u003ch2\u003e\u003cstrong\u003eFronius EBLU Essential Backup Load Unit 4,240,052\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Fronius Essential Backup Load Unit 4240052 is a microgrid interconnect device designed to provide automatic backup functionality for essential electrical loads. It provides the interface needed to support reliable backup operation while maintaining compatibility with common North American residential electrical configurations.\u003c\/p\u003e\n\u003cp\u003eDesigned for both indoor and outdoor installation, the Essential Backup Load Unit features a rugged Type 4X enclosure and supports split-phase 120\/240V as well as WYE 120\/208V and WYE 127\/220V network structures.\u003c\/p\u003e\n\u003cp\u003eThe unit supports nominal AC voltages from 208V to 240V, delivers nominal input\/output power up to 12,000W at 240V, and accommodates up to 50A maximum continuous input\/output current. Its integrated protection devices and GPIO interface provide a purpose-built solution for Fronius backup and microgrid applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic Essential Backup\u003c\/strong\u003e\u003cbr\u003eDesigned to enable automatic backup operation for essential electrical loads when used as part of a compatible Fronius energy system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMicrogrid Interconnect Device\u003c\/strong\u003e\u003cbr\u003eProvides the electrical interconnection functionality required for supported Fronius microgrid and backup configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e208V–240V AC Compatibility\u003c\/strong\u003e\u003cbr\u003eSupports nominal AC voltages from 208V to 240V, with an operating voltage range of 183V to 264V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 12kW Nominal Power\u003c\/strong\u003e\u003cbr\u003eRated for 10,400W at 208V, 11,000W at 220V, and 12,000W at 240V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e50A Continuous Current Capacity\u003c\/strong\u003e\u003cbr\u003eSupports up to 50A maximum continuous input\/output current at nominal voltage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMultiple Network Structures\u003c\/strong\u003e\u003cbr\u003eCompatible with split-phase 120\/240V, WYE 120\/208V, and WYE 127\/220V electrical configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Electrical Protection\u003c\/strong\u003e\u003cbr\u003eIncludes internal overcurrent protection devices for control, transformer, and sub-system circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndoor \u0026amp; Outdoor Installation\u003c\/strong\u003e\u003cbr\u003eFeatures a durable Type 4X enclosure suitable for indoor or outdoor installations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWide Environmental Operating Range\u003c\/strong\u003e\u003cbr\u003eDesigned for ambient temperatures from -13°F to 113°F (-25°C to 45°C) and relative humidity from 0% to 100%, including condensation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e10-Year Warranty\u003c\/strong\u003e\u003cbr\u003eBacked by a \u003cstrong\u003e10-year manufacturer warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eBest Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEssential Load Backup Systems\u003c\/strong\u003e\u003cbr\u003eIdeal for installations requiring automatic backup of selected critical or essential household loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFronius Solar + Backup Installations\u003c\/strong\u003e\u003cbr\u003eDesigned to integrate into compatible Fronius energy systems requiring microgrid interconnection functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResidential Backup Power\u003c\/strong\u003e\u003cbr\u003eSupports common North American split-phase and WYE electrical configurations for flexible system design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndoor or Outdoor Equipment Installations\u003c\/strong\u003e\u003cbr\u003eThe Type 4X enclosure provides installation flexibility for protected indoor spaces or exposed outdoor locations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eFronius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eEssential Backup Load Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number \/ SKU\u003c\/td\u003e\n\u003ctd\u003e4240052\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Type\u003c\/td\u003e\n\u003ctd\u003eMicrogrid Interconnect Device \/ Essential Backup Load Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Phases\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermitted Network Structure\u003c\/td\u003e\n\u003ctd\u003eSplit-phase 120\/240V; WYE 120\/208V; WYE 127\/220V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eIndoor \/ Outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003e4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal AC Voltage\u003c\/td\u003e\n\u003ctd\u003e208–240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating AC Voltage Range\u003c\/td\u003e\n\u003ctd\u003e183–264V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input \/ Output Frequency\u003c\/td\u003e\n\u003ctd\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Frequency Range\u003c\/td\u003e\n\u003ctd\u003e45–66 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input \/ Output Power\u003c\/td\u003e\n\u003ctd\u003e10,400W @ 208V \/ 11,000W @ 220V \/ 12,000W @ 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Factor\u003c\/td\u003e\n\u003ctd\u003e0.8–1 inductive \/ capacitive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Input \/ Output Current\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Interface\u003c\/td\u003e\n\u003ctd\u003eGPIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdmissible AC Conductor Size\u003c\/td\u003e\n\u003ctd\u003eAWG 14 to AWG 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdmissible Data Conductor Size\u003c\/td\u003e\n\u003ctd\u003eAWG 26 to AWG 16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Phase Imbalance\u003c\/td\u003e\n\u003ctd\u003e3,840W (off-grid operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Overcurrent Protection (Mains)\u003c\/td\u003e\n\u003ctd\u003e63A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Short-Circuit Breaking Capacity\u003c\/td\u003e\n\u003ctd\u003e10 kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermitted Ambient Temperature\u003c\/td\u003e\n\u003ctd\u003e-13°F to 113°F (-25°C to 45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermitted Relative Humidity\u003c\/td\u003e\n\u003ctd\u003e0–100% (including condensation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Elevation Above Sea Level\u003c\/td\u003e\n\u003ctd\u003e6,562 ft (2,000 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd\u003e23.64 × 17.24 × 11.19 in including mounting bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e81.90 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eUL 1741:2023 (incl. Supplement SA \u0026amp; SB); IEEE 1547:2018 (incl. IEEE 1547a:2020); IEEE 1547.1:2020; CSA C22.2 No. 107.1:2016; FCC Part 15 A \u0026amp; B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout Fronius:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFronius develops advanced solar energy solutions focused on reliable power conversion, intelligent energy management, and integrated backup capabilities. Its solar portfolio includes inverters, system components, monitoring solutions, and energy management technologies engineered to support modern residential energy systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eReliable Essential Backup and Microgrid Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Fronius Essential Backup Load Unit 4240052 combines automatic essential-load backup functionality, robust electrical protection, flexible voltage compatibility, and a durable outdoor-ready enclosure. With support for up to 12kW nominal input\/output power at 240V and 50A continuous current, it provides a purpose-built interconnection solution for compatible Fronius backup energy systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy From US Solar Supplier\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUS Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.\u003c\/p\u003e\n\u003cp\u003eOur inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed Assistance?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHave questions before you order? Call \u003cstrong\u003e1-800-230-7004\u003c\/strong\u003e to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.\u003c\/p\u003e","brand":"Fronius","offers":[{"title":"Default Title","offer_id":52250656801066,"sku":"USSSP202-1137","price":2400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/3408\/1340\/files\/4240052_USSS.webp?v=1787226977","url":"https:\/\/ussolarsupplier.com\/products\/fronius-eblu-essential-backup-load-unit-4-240-052","provider":"US Solar Supplier","version":"1.0","type":"link"}