Solis S6 15kW Three Phase Low Voltage Hybrid Inverter

Solis S6 15kW Three-Phase Low-Voltage 48V Hybrid Inverter The Solis S6-EH3P15K02-NV-YD-L (part number SOL-S6-EH3P15K-NV-YD-L) is a 15 kW three-phase low-voltage (48 V) hybrid inverter from the Solis SOLARATOR series. As a hybrid inverter and battery storage controller, it combines PV generation with 48 V battery management (lithium or lead-acid, 40–60 V range), delivering full three-phase backup power with UPS-level changeover of less than 10 ms and 200% overload for 10 seconds in off-grid mode. It features 2 MPPT trackers with up to 4 string inputs, a maximum usable PV input of 24 kW (160% oversizing), DC and AC coupling support, generator connectivity with auto control, and parallel operation of up to 6 units. IP66 rated with a 7-inch touchscreen, Bluetooth, and app-based commissioning. Easton Meter, 3 x CT clamps, and WiFi/LAN stick included. Available from DECO Group, a UK-based solar trade wholesaler. Key Technical Details PV Input Recommended maximum PV array size: 30 kW Maximum usable PV input power: 24 kW Maximum PV input voltage: 1,000 V Rated PV voltage: 550 V MPPT voltage range: 200 V to 850 V DC startup voltage: 200 V (shutdown: 160 V) MPPT quantity: 2 Maximum string inputs: 4 Maximum PV input current: 40 A / 40 A per MPPT Maximum PV short-circuit current: 50 A / 50 A per MPPT PV oversizing: up to 160% Integrated DC switch: Yes Connector: MC4 Battery Battery type: Li-ion / Lead-acid Battery voltage range: 40 V to 60 V (48 V class) Maximum charge/discharge current: 290 A total Number of battery ports: 2 Maximum charge/discharge current per port: 150 A Battery communication: CAN / RS485 Battery charged by PV max efficiency: 95.0% Battery charged by AC max efficiency: 94.4% Battery discharged to AC max efficiency: 94.5% AC Output (Grid-Connected) Rated AC output power: 15 kW Maximum apparent output power: 15 kVA Rated grid voltage: 3/N/PE, 220 V / 380 V or 230 V / 400 V Rated grid frequency: 50 / 60 Hz Rated grid output current: 22.8 A / 21.7 A Power factor: greater than 0.99 (0.8 leading to 0.8 lagging) THDi: less than 3% Maximum efficiency: 97.5% EU efficiency: 96.4% Backup / Off-Grid Rated backup output power: 15 kW Maximum apparent backup output power: 2 x rated power for 10 seconds (200% overload) Backup switch time: less than 10 ms (UPS-level) Maximum continuous AC passthrough current: 50 A THDv at linear load: less than 3% Maximum power per phase: 40% of rated power PV-only off-grid operation: supported (site design dependent) Generator Generator max input power: 15 kW Generator max input current: 22.8 A / 21.7 A Generator auto control: Yes General Surge protection: DC Type II / AC Type II (optional) AFCI 2.0: Optional Parallel operation: up to 6 units Display: 7.0-inch LCD with Bluetooth and app Communication: CAN, RS485, Ethernet; optional WiFi, Cellular, LAN Cooling: Intelligent fan-cooling Ingress protection: IP66 Operating temperature: -25°C to +60°C Self-consumption (night): less than 30 W Dimensions: 430 x 660 x 305 mm (W x H x D) Weight: 42 kg Key Features 15 kW three-phase hybrid inverter with 48 V battery storage (lithium or lead-acid) UPS-level backup switching in less than 10 ms 200% overload for 10 seconds in off-grid mode for motor, pump, and A/C start-up 160% PV oversizing with up to 24 kW usable PV input across 2 MPPT trackers PV-only off-grid operation supported, reducing upfront battery costs DC and AC coupling for flexible retrofits and system expansion Generator connectivity with automatic on/off control Parallel operation of up to 6 units for up to 90 kW of backup Three-phase unbalanced output up to 40% of rated power per phase 2 battery ports with up to 290 A total charge/discharge current IP66 rated for indoor or outdoor installation in harsh environments 7-inch touchscreen with Bluetooth and app for commissioning in under 5 minutes Smart load prioritisation to extend backup time for critical loads Included Components 1 x Solis S6-EH3P15K02-NV-YD-L hybrid inverter 1 x Easton Meter 3 x CT clamps 1 x S2-WL-ST WiFi/LAN stick System Compatibility Part of the Solis SOLARATOR S6-EH3P(8-18)K series Supports lithium-ion and lead-acid batteries in the 40–60 V (48 V class) range Refer to the Solis Battery Compatibility List for confirmed compatible battery models DC and AC coupling supported for new-build and retrofit installations Up to 6 units in parallel for expanded capacity Installation Notes At 42 kg, a two-person lift is required IP66 rated for indoor or outdoor installation Design PV strings within 1,000 V maximum PV input, operating in the 200–850 V MPPT window Verify battery type and configuration; connect within 40–60 V range If using generator input, validate generator sizing and configure auto-control parameters Must be installed by a qualified electrician or technician in compliance with local wiring regulations and DNO requirements Certifications and Compliance EN 50549 VDE 4105 NRS 097 Warranty Standard warranty: 5 years Extended warranty: extendable to 10 years Common Questions Click a question below to reveal the answer. Is the Solis S6 15kW a high-voltage or low-voltage battery inverter? Low voltage. The battery voltage range is 40–60 V (48 V class), supporting both lithium-ion and lead-acid batteries. How fast is the backup switching on the Solis S6 15kW hybrid? Backup changeover is specified as less than 10 ms, providing UPS-level switching for critical loads. Can the Solis S6 15kW run off-grid without batteries? Yes. The SOLARATOR series supports PV-only off-grid operation, though this is site design dependent. Can I connect a generator to the Solis S6 15kW hybrid? Yes. The inverter supports generator connectivity with automatic on/off control. The generator maximum input power is 15 kW. How many Solis S6 15kW inverters can be installed in parallel? Up to 6 units in parallel, providing up to 90 kW of backup power. What comes in the box with the Solis S6 15kW hybrid? The inverter is supplied with an Easton Meter, 3 x CT clamps, and an S2-WL-ST WiFi/LAN stick. About Solis Ginlong Solis, established in 2005, is an internationally recognised manufacturer of solar inverters for residential, commercial, and utility-scale applications. The SOLARATOR series represents Solis's advanced three-phase low-voltage hybrid platform for residential and small commercial energy storage. DECO Group supplies Solis hybrid inverters alongside compatible 48 V battery systems, monitoring accessories, and system components. Browse our Solis hybrid inverter catalogue for complete three-phase storage system configurations. About DECO Group We are a UK-based solar and energy storage wholesaler supplying hybrid inverters, battery systems, and installation accessories to professional installers and electrical contractors. Our Solis range covers grid-tied and hybrid inverters from residential to commercial scale. Visit decogroup.co.uk for the full catalogue.