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.
