Key Features

Benefits

• Supports integration of PV and high-voltage battery storage in one inverter platform.
• Fast backup transfer under 10 ms helps maintain supply continuity during changeover.
• 4 MPPTs assist with string layout where arrays face different directions.
• AC coupling support provides a route for upgrading existing grid-connected systems.
• IP66 enclosure supports external installation where environmental exposure is expected.

Technical Summary

Model S6-EH3P20K-H, rated at 20 kW with 20 kVA maximum apparent output. Three-phase 3/N/PE 380 V / 400 V operation, 50/60 Hz grid frequency, power factor >0.99 and THDi <3%. PV input supports up to 1000 V maximum voltage, 200-850 V MPPT range, 4 MPPTs and 4 input strings. Battery interface supports Li-ion batteries at 120-800 V with 50 A maximum charge/discharge current. Backup output provides <10 ms transfer and up to 2 times rated power for 10 seconds. Maximum efficiency is 98.5%, EU efficiency is 97.5%, and self-consumption at night is <25 W.

Installation Notes

PV connection uses MC4 connectors. Battery and AC connections use OT terminals. Communication is via CAN, RS485 and Ethernet, with optional Wi-Fi, Cellular and LAN listed in the source data. IP66 ingress protection indicates suitability for exposed external mounting within the stated environmental limits of -25 to +60°C and up to 2000 m altitude.

Efficiency

Maximum efficiency is 98.5% and EU efficiency is 97.5%. PV-to-battery maximum efficiency is listed at 98.5%, and battery-to-AC maximum efficiency at 97.5%. Self-consumption at night is below 25 W.