{"id":30292,"date":"2026-06-21T22:25:25","date_gmt":"2026-06-21T20:25:25","guid":{"rendered":"https:\/\/deyenergie.com\/product\/sun-12k-sg05lp3\/"},"modified":"2026-07-09T14:35:50","modified_gmt":"2026-07-09T12:35:50","slug":"sun-12k-sg05lp3","status":"publish","type":"product","link":"https:\/\/deyenergie.com\/en\/product\/sun-12k-sg05lp3\/","title":{"rendered":"SUN-12K-SG05LP3"},"content":{"rendered":"

Download datasheet (PDF)<\/a><\/p>\n

Deye SUN-12K-SG05LP3 \u2013 12 kW three-phase low-voltage (48 V) hybrid inverter for residential and small commercial systems<\/h2>\n

The Deye SUN-12K-SG05LP3<\/strong> (SUN-12K-SG05LP3-EU-SM2) is a 12 kW rated power, three-phase, low-voltage (48 V)<\/strong> hybrid inverter<\/strong>, the highest-power member of the popular SG05LP3 series. Thanks to its transformer-isolated design, it is compatible with the most common 48 V batteries (lithium-ion or lead-acid), while the 2 independent MPPTs optimize production even on roofs with different orientations. It combines on-grid and off-grid operation in a single unit, making it a flexible solution for powering larger family homes and small businesses. <\/p>\n

Why choose the Deye SUN-12K-SG05LP3 inverter?<\/h3>\n

The Deye SUN-12K-SG05LP3 inverter<\/strong> operates with up to 97.6% maximum and >99% MPPT efficiency, and optimizes energy use and storage with intelligent algorithms. During the day, solar energy first supplies the loads, with surplus charging the battery and feeding the grid; in case of power outage, the inverter automatically switches to battery operation. The 100% unbalanced output adapts to phase-by-phase varying loads, and in off-grid mode the inverter can deliver twice the rated power for 10 seconds, allowing high-inrush motors to start. The series’ highest charge\/discharge current of up to 240 A ensures fast battery charging and strong discharge performance. <\/p>\n

Key advantages of the Deye SUN-12K-SG05LP3<\/h3>\n
    \n
  • 48 V battery compatibility<\/strong> \u2013 transformer-isolated design, for lithium-ion and lead-acid batteries, up to 240 A charge\/discharge<\/li>\n
  • 2 MPPT controllers<\/strong> \u2013 up to 18 kW PV input, for roofs with different orientations<\/li>\n
  • 100% unbalanced output<\/strong> \u2013 precise adaptation to real, unbalanced loads<\/li>\n
  • Strong starting power<\/strong> \u2013 2\u00d7 rated power for 10 s in off-grid mode<\/li>\n
  • High efficiency<\/strong> \u2013 up to 97.6% max. and >99% MPPT efficiency <\/li>\n
  • Scalability<\/strong> \u2013 up to 10 units can be paralleled in on-grid and off-grid modes<\/li>\n
  • AC-coupled retrofit and generator support<\/strong> \u2013 existing solar systems can be expanded with storage; diesel generator energy can also be stored<\/li>\n
  • Compact, outdoor design<\/strong> \u2013 IP65 protection, only 35.2 kg, \u226455 dB, touchscreen LCD<\/li>\n
  • Flexible monitoring<\/strong> \u2013 GPRS \/ Wi-Fi \/ Bluetooth \/ 4G \/ LAN, RS485\/RS232\/CAN<\/li>\n<\/ul>\n

    Applications<\/h3>\n

    The Deye SUN-12K-SG05LP3 inverter<\/strong> is ideal for larger family homes, farms, and small businesses where three-phase, flexible, and reliable energy management is needed with 48 V battery storage. It helps maximize self-consumption, acts as a backup power source during outages, and with 6 programmable charge\/discharge periods enables off-peak charging and peak-time discharge. Thanks to AC-coupled expandability, existing solar systems can also be retrofitted with storage. <\/p>\n

    Deye SUN-12K-SG05LP3 technical specifications<\/h3>\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
    Model<\/td>\nSUN-12K-SG05LP3-EU-SM2<\/td>\n<\/tr>\n
    Type<\/td>\nthree-phase, low-voltage (48 V) hybrid inverter<\/td>\n<\/tr>\n
    Rated AC power<\/td>\n12,000 W (12 kW)<\/td>\n<\/tr>\n
    Max. AC apparent power<\/td>\n13,200 VA<\/td>\n<\/tr>\n
    Rated AC current (380\/400 V)<\/td>\n18.2 \/ 17.4 A<\/td>\n<\/tr>\n
    Max. AC current (380\/400 V)<\/td>\n20.0 \/ 19.2 A<\/td>\n<\/tr>\n
    Rated AC voltage \/ range<\/td>\n220\/380 V, 230\/400 V; 0.85\u20131.1 Un<\/td>\n<\/tr>\n
    Grid frequency \/ range<\/td>\n50 Hz (45\u201355) \/ 60 Hz (55\u201365)<\/td>\n<\/tr>\n
    Grid connection<\/td>\n3L + N + PE<\/td>\n<\/tr>\n
    Max. continuous AC pass-through (grid\u2192load)<\/td>\n45 A<\/td>\n<\/tr>\n
    Peak power (off-grid, 10 s)<\/td>\n2\u00d7 rated<\/td>\n<\/tr>\n
    Power factor range<\/td>\n0.8 capacitive \u2013 0.8 inductive<\/td>\n<\/tr>\n
    Max. PV input power<\/td>\n18,000 W (18 kW)<\/td>\n<\/tr>\n
    Max. PV access power<\/td>\n24,000 W (24 kW)<\/td>\n<\/tr>\n
    Max. PV voltage<\/td>\n800 V<\/td>\n<\/tr>\n
    MPPT voltage range<\/td>\n200\u2013650 V<\/td>\n<\/tr>\n
    Rated PV voltage<\/td>\n550 V<\/td>\n<\/tr>\n
    Start-up voltage<\/td>\n160 V<\/td>\n<\/tr>\n
    Number of MPPTs \/ strings<\/td>\n2 MPPTs \/ 1 string per MPPT<\/td>\n<\/tr>\n
    Max. operating PV current<\/td>\n20+20 A<\/td>\n<\/tr>\n
    Max. short-circuit current<\/td>\n30+30 A<\/td>\n<\/tr>\n
    Battery type<\/td>\nlead-acid or lithium-ion (48 V)<\/td>\n<\/tr>\n
    Battery voltage range<\/td>\n40\u201360 V<\/td>\n<\/tr>\n
    Number of battery inputs<\/td>\n1<\/td>\n<\/tr>\n
    Max. charge\/discharge current<\/td>\n240 A<\/td>\n<\/tr>\n
    Charging strategy<\/td>\nself-adaptive to BMS<\/td>\n<\/tr>\n
    Max. efficiency<\/td>\n97.6%<\/td>\n<\/tr>\n
    Euro efficiency<\/td>\n97.0%<\/td>\n<\/tr>\n
    MPPT efficiency<\/td>\n>99%<\/td>\n<\/tr>\n
    THDi<\/td>\n<3%<\/td>\n<\/tr>\n
    Parallel capability<\/td>\nup to 10 units (on-grid and off-grid)<\/td>\n<\/tr>\n
    Operating temperature<\/td>\n\u221240 \u2013 +60 \u00b0C (derating above >45 \u00b0C)<\/td>\n<\/tr>\n
    Humidity<\/td>\n0\u2013100%<\/td>\n<\/tr>\n
    Altitude<\/td>\n3,000 m<\/td>\n<\/tr>\n
    Noise level<\/td>\n\u226455 dB<\/td>\n<\/tr>\n
    Protection rating<\/td>\nIP65<\/td>\n<\/tr>\n
    Cooling<\/td>\nintelligent air cooling<\/td>\n<\/tr>\n
    Monitoring<\/td>\nGPRS \/ Wi-Fi \/ Bluetooth \/ 4G \/ LAN (optional)<\/td>\n<\/tr>\n
    Communication<\/td>\nRS485, RS232, CAN<\/td>\n<\/tr>\n
    Surge protection<\/td>\nType II (DC), Type II (AC)<\/td>\n<\/tr>\n
    Dimensions (W \u00d7 H \u00d7 D)<\/td>\n386 \u00d7 660 \u00d7 250 mm<\/td>\n<\/tr>\n
    Weight<\/td>\n35.2 kg<\/td>\n<\/tr>\n
    Warranty<\/td>\n5 years \/ 10 years (depending on installation location)<\/td>\n<\/tr>\n
    Grid standards<\/td>\nIEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE R25, G99, VDE-AR-N 4105<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Protection functions include: DC reverse polarity, AC overcurrent and overvoltage protection, short-circuit and thermal protection, DC component monitoring, insulation resistance and residual current protection (RCD), anti-islanding protection, DC disconnect, and optional AFCI (arc fault protection).<\/em><\/p>\n

    Frequently asked questions about the Deye SUN-12K-SG05LP3 inverter<\/h3>\n

    What does the SUN-12K-SG05LP3-EU-SM2 designation mean?<\/strong>
    \nThe “12K” refers to the 12 kW rated power, “SG05LP3” to the three-phase, low-voltage (48 V battery) hybrid platform; the 12 kW is the largest member of the series.<\/p>\n

    What is the difference between the SUN-10K and SUN-12K SG05LP3?<\/strong>
    \nBoth models are built on the same platform and housing; the main differences are the rated power (10 kW vs 12 kW), the corresponding AC current, the higher PV input (15 kW vs 18 kW), and the maximum charge\/discharge current (210 A vs 240 A).<\/p>\n

    What battery does the Deye SUN-12K-SG05LP3 work with?<\/strong>
    \nIt is compatible with the most common 48 V (40\u201360 V) batteries, whether lithium-ion or lead-acid, with up to 240 A charge\/discharge current.<\/p>\n

    Can the Deye SUN-12K-SG05LP3 be installed outdoors?<\/strong>
    \nYes, thanks to IP65 protection and intelligent air cooling, it is suitable for outdoor installation, with an operating temperature range of \u221240 to +60 \u00b0C (with derating above >45 \u00b0C).<\/p>\n","protected":false},"excerpt":{"rendered":"

    Download datasheet (PDF) Deye SUN-12K-SG05LP3 \u2013 12 kW three-phase low-voltage (48 V) hybrid inverter for residential and small commercial systems<\/p>\n","protected":false},"featured_media":30436,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[188],"product_tag":[],"class_list":["post-30292","product","type-product","status-publish","has-post-thumbnail","product_cat-inverter","first","instock","featured","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product\/30292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/comments?post=30292"}],"version-history":[{"count":1,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product\/30292\/revisions"}],"predecessor-version":[{"id":30758,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product\/30292\/revisions\/30758"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/media\/30436"}],"wp:attachment":[{"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/media?parent=30292"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product_brand?post=30292"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product_cat?post=30292"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deyenergie.com\/en\/wp-json\/wp\/v2\/product_tag?post=30292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}