{"id":57593,"date":"2026-08-31T22:53:13","date_gmt":"2026-08-31T20:53:13","guid":{"rendered":"https:\/\/wodatherm.com\/?post_type=product&#038;p=57593"},"modified":"2026-09-16T14:06:27","modified_gmt":"2026-09-16T12:06:27","slug":"huawei-backup-box-b1-three-phase-grid-single-phase-backup-3-3-kva-02406150","status":"publish","type":"product","link":"https:\/\/wodatherm.com\/en\/product\/huawei-backup-box-b1-three-phase-grid-single-phase-backup-3-3-kva-02406150\/","title":{"rendered":"Huawei Backup Box-B1 three-phase grid interface with 3.3 kVA single-phase backup"},"content":{"rendered":"<p><strong>Huawei Backup Box-B1<\/strong> is the grid and backup changeover interface for selected three-phase Huawei SUN2000 M1 inverter and battery systems. The grid and inverter side is three-phase, but the documented backup-load output is single-phase only.<\/p>\n<h2>Critical phase distinction<\/h2>\n<ul>\n<li>Model: Backup Box-B1<\/li>\n<li>Manufacturer article: 02406150<\/li>\n<li>Grid and inverter input: three-phase, 380\/400 V, 50\/60 Hz<\/li>\n<li>Backup-load output: single-phase, 220\/230 V, maximum 3,300 VA and 15.2 A<\/li>\n<li>Manufacturer-specified switchover time: less than 3 seconds<\/li>\n<li>Compatible inverter family in datasheet version 02-202311: SUN2000-3\/4\/5\/6\/8\/10KTL-M1<\/li>\n<\/ul>\n<h2>Not three-phase backup and not a zero-interruption UPS<\/h2>\n<p>B1 does not deliver three-phase backup to all building circuits. A qualified designer must select suitable single-phase critical loads and keep the calculated backup demand within the documented output. The specified switchover takes time; equipment that cannot tolerate interruption requires its own suitable UPS. Backup power and duration depend on inverter capability, battery state of charge, battery configuration and actual loads.<\/p>\n<h2>Installation data<\/h2>\n<ul>\n<li>Enclosure: IP65<\/li>\n<li>Operating temperature: -20 \u00b0C to +45 \u00b0C<\/li>\n<li>Relative humidity: 0% to 100%<\/li>\n<li>Dimensions: 400 x 350 x 130 mm<\/li>\n<li>Weight: 11 kg<\/li>\n<\/ul>\n<p>Compatibility, inverter firmware, grid type, phase allocation, protection, conductor sizing, earthing, isolation and commissioning settings must be verified for the site. The backup output must never be directly connected to the public grid. Installation and service are restricted to qualified electrical personnel.<\/p>\n<h2>Delivery scope and availability<\/h2>\n<p>This item is one Backup Box-B1. Battery, inverter, meter, external protection, cabling, backup-load distribution, installation and commissioning are separate. It is held in European supplier stock; exact revision and compatibility are confirmed when the order is accepted.<\/p>\n<p><a href=\"https:\/\/wodatherm.com\/wp-content\/uploads\/2026\/08\/huawei-backupbox-b0-b1-datasheet-en-version-02-202311-b1.pdf\">Download the locally hosted official English Huawei datasheet<\/a>. Browse <a href=\"https:\/\/wodatherm.com\/product-category\/bateriova-uloziste\/battery-accessories\/\">battery accessories<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Use more of your own solar energy and build a dependable reserve for evening consumption and a properly designed backup system.<\/strong><\/p>\n<p>Huawei Backup Box-B1 three-phase grid interface with 3.3 kVA single-phase backup. A strong choice for new installations and carefully planned expansion. We can verify voltage, communication protocol and the exact inverter model before ordering.<\/p>\n","protected":false},"featured_media":57591,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[2867],"product_cat":[2889],"product_tag":[2934,2937,2933,2905,2936,2935],"class_list":["post-57593","product","type-product","status-publish","has-post-thumbnail","product_brand-huawei-fusionsolar-energy","product_cat-battery-accessories","product_tag-2934","product_tag-3-3-kva","product_tag-huawei-backup-box-b1","product_tag-ip65","product_tag-single-phase-backup-output","product_tag-three-phase-grid-interface","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/product\/57593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/comments?post=57593"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/media\/57591"}],"wp:attachment":[{"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/media?parent=57593"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/product_brand?post=57593"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/product_cat?post=57593"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wodatherm.com\/en\/wp-json\/wp\/v2\/product_tag?post=57593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}