{"id":43957,"date":"2026-09-21T10:49:50","date_gmt":"2026-09-21T08:49:50","guid":{"rendered":"https:\/\/fvcomponentes.com\/?post_type=product&#038;p=43957"},"modified":"2026-09-21T15:01:34","modified_gmt":"2026-09-21T13:01:34","slug":"fox-ess-k8-hybrid-inverter","status":"publish","type":"product","link":"https:\/\/fvcomponentes.com\/en\/producto\/inversor-hibrido-fox-ess-k8\/","title":{"rendered":"Fox ESS K8 hybrid inverter \u00b7 8 kW single-phase, 4 MPPT, high voltage"},"content":{"rendered":"<p>The <strong>Fox ESS K8<\/strong> is a single-phase hybrid inverter from <strong>8 kW<\/strong> from the K series, the most powerful range of Fox ESS single-phase models. It is designed for large homes and small businesses with a single-phase electricity supply who require more power than the H1 series provides.<\/p>\n<h2>Key points<\/h2>\n<ul>\n<li><strong>Four independent MPPT trackers.<\/strong> This is the key difference compared to the H1 series: it allows for four different panel orientations, or the distribution of shade, without the need for optimisers or micro-inverters.<\/li>\n<li><strong>Up to 12 kWp photovoltaic array<\/strong> an inverter rated at around 8 kW.<\/li>\n<li><strong>Switchover to backup in less than 3 ms<\/strong>, virtually undetectable by any household appliance.<\/li>\n<li><strong>97.8 % at maximum efficiency<\/strong> and 97.4 % of European efficiency.<\/li>\n<li><strong>High-voltage battery (300\u2013480 V)<\/strong>, expandable up to 33.24 kWh with seven modules.<\/li>\n<li><strong>IP65<\/strong>, wall-mounted, for indoor or outdoor use.<\/li>\n<li><strong>Wi-Fi and mains adaptor included<\/strong> as standard.<\/li>\n<\/ul>\n<h2>Technical specifications<\/h2>\n<ul>\n<li>Rated output power: 8 kVA \u00b7 single-phase 230 V, 50\/60 Hz<\/li>\n<li>PV input: 4 independent MPPT channels \u00b7 80\u2013500 V \u00b7 20 A max. per input<\/li>\n<li>Recommended maximum PV power: 12 kWp<\/li>\n<li>Battery: high-voltage lithium, 300\u2013480 V \u00b7 50 A charge and discharge \u00b7 up to 33.24 kWh (7 modules)<\/li>\n<li>EPS backup output: 8 kVA \u00b7 switchover &lt; 3 ms<\/li>\n<li>Maximum efficiency 97.8 % \u00b7 European efficiency 97.4 %<\/li>\n<li>Dimensions: 450 \u00d7 527 \u00d7 208 mm \u00b7 weight 29 kg<\/li>\n<li>Protection rating: IP65 \u00b7 Class I<\/li>\n<li>Communications: Wi-Fi, 4G (optional), DRM, USB, CT, RS485<\/li>\n<li>Protections: DC reverse polarity, inverted battery, open circuit, short circuit and overvoltage<\/li>\n<\/ul>\n<h2>Compatible batteries<\/h2>\n<p>It works with the Fox ESS high-voltage batteries: <a href=\"https:\/\/fvcomponentes.com\/en\/product\/fox-ess-ep6-battery\/\">EP6, 5.76 kWh<\/a> y <a href=\"https:\/\/fvcomponentes.com\/en\/product\/fox-ess-ep12-battery\/\">EP12, 11.52 kWh<\/a>. From the second battery in parallel onwards, the <a href=\"https:\/\/fvcomponentes.com\/en\/product\/caja-conexion-fox-ess-hv-junction-box-50\/\">HV Junction Box 50<\/a>.<\/p>\n<h2>Guarantee<\/h2>\n<p>Standard 5-year warranty, extendable to 10 or 15 years by registering with FoxPro within 36 months of commissioning. Further information is available at the <a href=\"https:\/\/fvcomponentes.com\/en\/brand\/fox-ess\/\">Fox ESS brand page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>8 kW single-phase hybrid inverter with four independent MPPT trackers, supporting up to 12 kWp of photovoltaic array, EPS backup with switchover in less than 3 ms and a high-voltage battery ranging from 300 to 480 V. Wi-Fi and CT included. IP65.<\/p>","protected":false},"featured_media":43965,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"pwb-brand":[1055],"product_brand":[],"product_cat":[924,333,359],"product_tag":[1057,1062,1056,1061,1073],"class_list":["post-43957","product","type-product","status-publish","has-post-thumbnail","pwb-brand-fox-ess","product_cat-inversores-autoconsumo-hibridos-monofasicos","product_cat-inversores","product_cat-inversores-autoconsumo-hibridos","product_tag-alto-voltaje","product_tag-autoconsumo","product_tag-fox-ess","product_tag-inversor-hibrido","product_tag-serie-k","desktop-align-left","tablet-align-left","mobile-align-left","ast-product-gallery-layout-horizontal-slider","ast-product-gallery-with-no-image","ast-product-tabs-layout-horizontal","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"wcpa_form_fields":null,"brands":[{"id":1055,"name":"Fox ESS","slug":"fox-ess"}],"_links":{"self":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product\/43957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/comments?post=43957"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/media\/43965"}],"wp:attachment":[{"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/media?parent=43957"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/pwb-brand?post=43957"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_brand?post=43957"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_cat?post=43957"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/fvcomponentes.com\/en\/wp-json\/wp\/v2\/product_tag?post=43957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}