Deye SUN-12K-SG05LP3-EU-SM2 12kW LV Three-Phase Hybrid Inverter

The Deye SUN-12K-SG05LP3-EU-SM2 is a 12kW three-phase hybrid inverter for 48V low-voltage battery systems, built for larger homes, farms and small commercial sites on a three-phase supply.

It takes up to 24kW of PV across two MPP trackers with two strings each, and charges and discharges a 48V battery bank at up to 240A. Grid, PV, battery and generator are all managed by the one unit, with six programmable time periods for charging and discharging so the system can follow a tariff or a load profile. The battery side is transformer-isolated, the enclosure is rated IP65, and the output is 100% unbalanced, so each phase can deliver up to half of the rated power on its own.

Why installers pick this unit

• 12kW three-phase output (13.2kVA maximum), with a 45A continuous grid-to-load passthrough
• Two MPP trackers, two strings each, 26A per tracker for modern high-current panels; 24kW maximum PV access
• 240A battery charge and discharge, self-adapting to the battery BMS
• Parallels up to 10 units on- and off-grid, with multiple battery banks
• AC coupling to retrofit an existing grid-tied PV array, plus generator support
• 97.6% peak efficiency (97.0% Euro); WiFi, RS485 and CAN comms; NRS 097 is among the listed grid codes

Good to know before you quote it

• Low-voltage (40-60V) batteries only. For high-voltage battery stacks use the Deye HV three-phase range.
• Maximum PV input voltage is 800V (MPPT range 200-650V). Size strings for the coldest site temperature.
• One battery input. For more battery current or a second battery input, step up to the 14-20kW SG05LP3 models.
• Warranty is 5 years, or up to 10 years depending on the installation country. Confirm against Deye's warranty policy for the site.