Description
xSolis 15kW Three Phase Hybrid Solar Inverter Low Voltage 48V S6-EH3P15K02-NV-YD-L
The Solis S6-EH3P15K02-NV-YD-L is a 15kW three phase hybrid inverter from the S6 Solarator series, designed for large homes, farms and small commercial sites that store solar energy in 48V low voltage batteries. It works with a wide range of lithium and lead acid batteries, accepts up to 24kW of usable PV input and switches to backup power in under 10ms when the grid fails.
Key Features
- 15kW rated output with 15kVA maximum apparent power on both the grid and backup sides.
- Up to 24kW usable PV input (160% of rated power) across 2 MPPTs and 4 strings, with 40A per MPPT and 20A per string for high power modules.
- 48V battery input (40V to 60V) with up to 290A charge and discharge current across two battery ports.
- Backup switchover in under 10ms, with 200% overload for 10 seconds to start motors, water pumps and air conditioners.
- Unbalanced three phase output, with up to 50% of rated power (7.5kW) available on any single phase.
- Up to 6 inverters in parallel, plus generator input with automatic control and AC coupling with existing PV.
- IP66 enclosure with intelligent fan cooling, operating from -25°C to +60°C.
- 7 inch LCD screen, Bluetooth app setup and SolisCloud remote monitoring over built in Wi-Fi and LAN.
Product Overview
The inverter manages solar, battery, grid and generator from a single unit. Solar power supplies the property first and charges the battery, while the grid tops up any shortfall. If the grid fails, the backup output keeps critical loads running, and Smart Load management lets you prioritise circuits to extend battery runtime. A customisable backup level holds a battery reserve for outages.
It also supports PV only off grid operation, so a system can run from solar alone and have battery storage added later. A generator can be connected with automatic control to extend backup during long outages, and both DC and AC coupling are supported, so an existing PV array can keep charging the battery even when the site is off grid.
For larger sites, up to six units can run in parallel, with a switchover time under 20ms in a parallel system. Communication includes CAN and RS485 for the battery BMS, RS485 for the energy meter, DRM, a digital input and four digital outputs, with 2G, 3G or 4G available as an option.
Applications
- Large residential solar PV systems with a three phase supply and 48V battery storage
- Farms, workshops and small commercial premises that need backup power for critical loads
- Adding battery storage to an existing PV system by AC coupling
- Off grid and weak grid sites with generator support
- Expandable systems with up to 6 inverters in parallel
What Is Included
- 1 x Solis S6-EH3P15K02-NV-YD-L 15kW three phase hybrid inverter
Installation and Safety Notes
This inverter must be installed and commissioned by a qualified electrician or MCS certified solar installer, in line with BS 7671 (IET Wiring Regulations), local network operator requirements and the Solis installation manual. The unit weighs 42kg, so plan for a suitable wall and a two person lift.
The IP66 enclosure is suitable for indoor or outdoor wall mounting within the -25°C to +60°C operating range and up to 4000m altitude. Keep the cooling fans clear of obstructions.
The battery input is low voltage (40V to 60V) at up to 290A, so battery cables, fusing and DC isolation must be sized for that current. Use a battery whose BMS communicates with Solis over CAN or RS485, and confirm compatibility with the battery manufacturer before specifying. Size AC cabling, overcurrent protection, RCD protection, surge protection and earthing for a 15kW three phase installation.
This is a three phase inverter and is not suitable for single phase supplies or high voltage batteries. No single phase may carry more than 50% of rated power (7.5kW).
Specifications
xModel Information
| Parameter | Value |
| Model | S6-EH3P15K02-NV-YD-L |
| Series | Solis S6 Solarator 5 to 18K |
| Inverter Type | Three Phase Low Voltage Hybrid Energy Storage Inverter |
| Rated Power | 15kW |
Input DC (PV Side)
| Parameter | Value |
| Recommended Maximum PV Array Size | 30kW |
| Maximum Usable PV Input Power | 24kW |
| Maximum Input Voltage | 1000V |
| Rated Voltage | 550V |
| Start-up Voltage | 160V |
| MPPT Voltage Range | 200V to 850V |
| Maximum Input Current | 40A / 40A |
| Maximum Current per DC Input | 20A |
| Maximum Short Circuit Current | 50A / 50A |
| MPPT Number / Maximum Input Strings | 2 / 4 |
Battery
| Parameter | Value |
| Battery Type | Li-ion / Lead-acid |
| Battery Voltage Range | 40V to 60V |
| Maximum Charge / Discharge Current | 290A |
| Battery Ports / BMS Ports | 2 / 1 |
| Maximum Charge / Discharge Current per Port | 150A |
| Communication | CAN / RS485 |
Output AC (Grid Side)
| Parameter | Value |
| Rated Output Power | 15kW |
| Maximum Apparent Output Power | 15kVA |
| Rated Grid Voltage | 3/N/PE, 220V / 380V; 3/N/PE, 230V / 400V |
| Rated Grid Frequency | 50Hz / 60Hz |
| Rated Grid Output Current | 22.8A / 21.7A |
| Power Factor | >0.99 (0.8 leading to 0.8 lagging) |
| THDi | <3% |
Input AC (Grid Side)
| Parameter | Value |
| Maximum Input Power | 22.5kW |
| Input Voltage Range | 323V to 437V / 340V to 460V |
| Maximum Input Current | 34.2A / 32.5A |
Output AC (Backup)
| Parameter | Value |
| Rated Output Power | 15kW |
| Maximum Apparent Output Power | 2 x rated power for 10s |
| Backup Switch Time | <10ms single unit, <20ms parallel (up to 6 units) |
| Rated Output Voltage | 3/N/PE, 220V / 380V; 3/N/PE, 230V / 400V |
| Rated Frequency | 50Hz / 60Hz |
| Rated Output Current | 22.8A / 21.7A |
| Maximum AC Passthrough Current | 50A |
| THDv at Linear Load | <3% |
Input AC (Generator Side)
| Parameter | Value |
| Maximum Input Power | 15kW |
| Rated Input Current | 22.8A / 21.7A |
| Rated Input Voltage | 3/N/PE, 220V / 380V; 3/N/PE, 230V / 400V |
| Rated Input Frequency | 50Hz / 60Hz |
Efficiency
| Parameter | Value |
| Maximum Efficiency | 97.5% |
| EU Efficiency | 97.0% |
| Battery Charged by PV / AC Maximum Efficiency | 95.0% / 94.4% |
| Battery Discharge Efficiency | 94.5% |
Protection
| Parameter | Value |
| Surge Protection | DC Type II / AC Type II (optional) |
| Output Over Current Protection | Yes |
| Insulation Resistance Monitoring | Yes |
| Residual Current Detection | Yes |
| Integrated PV Switch | Yes |
| DC Reverse Polarity Protection | Yes |
| Protection Class / Overvoltage Category | I / II (PV and battery), III (mains, backup and generator) |
| Integrated AFCI 2.0 | Optional |
| Anti-islanding Protection | Yes |
General Data
| Parameter | Value |
| Maximum Power per Phase | 50% of rated power (7.5kW) |
| Dimensions W x H x D | 430 x 660 x 305mm |
| Weight | 42kg |
| Topology | Non-isolated (PV), isolated (battery) |
| Self-consumption | <30W |
| Operating Temperature Range | -25°C to +60°C |
| Relative Humidity | 0 to 100% |
| IP Rating | IP66 |
| Noise Emission (typical) | <65dB(A) |
| Cooling | Intelligent fan cooling |
| Maximum Operating Altitude | 4000m |
Features
| Parameter | Value |
| PV Connection | MC4 quick connection plug |
| Battery Connection | Screw terminal |
| AC Connection | Screw terminal |
| Display | 7.0 inch LCD, Bluetooth and app |
| Communication | Wi-Fi, LAN, Bluetooth, CAN-BMS, CAN-Parallel x2, RS485-Meter, RS485, DRM, DI, DO x4; 2G/3G/4G optional |
| Parallel Operation | Up to 6 units |
Certifications
| Parameter | Value |
| Grid Connection Standard | EN 50549-1/-10, VDE 4105, VDE 0124, NRS 097-2-1, IEC 62116, IEC 61727, IEC 60068, IEC 61683, EN 50530, EN 50438L, CEI 0-21, Sri Lanka, Vietnam, MEA, PEA |
| Safety / EMC Standard | IEC/EN 62109-1/-2, IEC/EN 61000-6-1/-2/-3/-4 |
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.