




The Deye SUN-12K-SG05LP3-EU-SM2 is a 12kW three-phase hybrid inverter built for residential solar storage, commercial rooftop solar, small business backup power, and advanced self-consumption energy systems. As a low-voltage hybrid inverter for 40–60V battery systems, it combines three-phase power quality with strong battery charging capability, wide PV operating range, and flexible installation for both new solar projects and retrofit energy storage upgrades.
For installers and EPCs, this three-phase solar inverter stands out with 100% unbalanced output, support for AC coupling, diesel generator energy storage, and parallel operation of up to 10 units. The dual-MPPT design helps optimize energy harvest from different roof orientations, while 6 programmable charge/discharge periods support peak shaving, time-of-use arbitrage, and backup energy planning.
This model is highly relevant for search terms such as three phase hybrid inverter, 12kW hybrid inverter, low voltage battery inverter, 48V solar inverter, residential ESS inverter, commercial solar storage inverter, backup power inverter, on-grid off-grid inverter, lithium battery hybrid inverter, and diesel generator compatible solar inverter. Official page: https://www.deyeinverter.com/product/three-phase-hybrid-inverter-1/sun3-4-5-6-8-10-12ksg05lp3eusm2-312kw-three-phase-2-mppt-hybrid-inverter-lv-battery-supported.html
| Item | Details |
| Rated AC input/output active power | 12,000 W; max AC apparent power: 13,200 VA |
| Three-phase output | 220/380 V, 230/400 V; grid connection 3L+N+PE; rated grid frequency 50/60 Hz |
| Battery | Lead-acid or lithium-ion; battery voltage range 40–60 V; 1 battery input |
| Max charging current | 240 A |
| Max discharging current | 240 A |
| PV side | Max PV access power 24,000 W; max PV input power 19,200 W; max PV input voltage 800 V |
| Start-up voltage | 160 V |
| MPPT voltage range | 200–650 V; rated PV input voltage: 550 V |
| MPPT / strings | 2 MPPT; 2/2+2 strings; max operating PV input current 26+26 A; max short-circuit current 39+39 A |
| Rated AC current | 18.2/17.4 A |
| Max AC current | 20/19.2 A |
| Max continuous AC passthrough | 45 A |
| Efficiency | Series max efficiency up to 97.6%; MPPT efficiency >99% |
| Key functions | 100% unbalanced output, AC coupling, supports storing energy from diesel generator, transformer isolation design, 6 time periods for battery charging/discharging, max 10 units in parallel |