Description
xSolis 125kW Three Phase Hybrid Solar Inverter High Voltage S6-EH3P125K10-NV-YD-H
The Solis S6-EH3P125K10-NV-YD-H is a 125kW three phase high voltage hybrid inverter and the largest model in the Solis Solarator 80 to 125K series. It takes up to 250kW of solar, two high voltage battery banks, the grid and a generator, giving large commercial and industrial sites a single point of control for solar, storage and backup.
It is aimed at factories, large farms, distribution centres and other sites where demand is high and an outage is expensive. With 20 string inputs, 200A of combined battery charge current and parallel operation up to 1.25MW, it scales from a single unit to a multi inverter plant.
High Solar Input for Large Arrays
The 125kW model supports a recommended PV array of up to 250kW, twice its rated output, with a maximum input voltage of 1000V, a rated voltage of 600V and a wide MPPT range from 150V to 950V. Ten independent MPPT trackers take 20 strings in total, and each input handles up to 42A (21A per string), so it works with high power PV modules.
Two Ports for High Voltage Batteries
The inverter works with high voltage lithium batteries from 300V to 950V. Two independent battery ports, each with its own BMS connection, charge and discharge at up to 100A each, giving up to 200A of combined charge current for fast charging. Solis rates the range for battery modules from 100Ah to 314Ah, and the twin ports make it straightforward to split storage or add capacity later. Battery communication is via CAN.
Backup Power, Generator and Weak Grid Support
On-grid to off-grid switching takes less than 10ms for a single inverter, so critical loads carry on through a grid failure. In backup mode the 125kW model delivers 140% of rated power for 10 seconds and 160% for 200 milliseconds, which helps start motors, compressors and pumps. Battery reserve management and intelligent load prioritisation stretch the supply time for the loads that matter most.
A dedicated generator input rated at 125kW, flexible control for weak grid and genset hybrid systems, and a utility bypass that feeds backup loads directly from the grid all help keep a site running when the supply is unreliable.
Commercial Energy Management
Solar and storage work together for demand management and anti reverse flow (export limiting), and dynamic reactive power compensation helps improve the site power factor and reduce reactive power charges. AI integration and virtual power plant (VPP) readiness support dynamic tariff optimisation. Both DC and AC coupling are supported, and a three in one interface connects on-grid PV, wind power and diesel generators.
Parallel Operation up to 1.25MW
Multiple units can run in parallel for systems up to 1.25MW, with a Solis STS cabinet recommended above 6 inverters. In a parallel system of up to 6 inverters the switchover time is below 20ms. Each phase carries up to 33% of rated power, so plan for a balanced three phase load.
Monitoring and Communication
A 7 inch LCD display, Bluetooth and the Solis app handle local setup and commissioning. Wi-Fi, LAN and Bluetooth are standard and 4G is optional. The unit also provides two CAN-BMS ports, two CAN parallel ports, RS485 for the meter, RS485, DRM, five digital inputs and four digital outputs. This version is supplied with a CT or meter in the box.
Built for Demanding Sites
An IP66 enclosure, intelligent redundant fan cooling and Solis patented cooling design keep the inverter working from -25°C to +60°C, in 0 to 100% relative humidity and at altitudes up to 3000m.
Applications
- Commercial and industrial solar PV with battery storage
- Farms, cold stores and agricultural buildings
- Factories, warehouses and workshops
- Peak demand reduction and export limiting
- Backup power for critical loads
- Sites with a weak grid or a standby generator
Installation Notes
The S6-EH3P125K10-NV-YD-H is a high voltage battery inverter. It must only be used with compatible high voltage lithium battery systems in the 300V to 950V range and is not suitable for 48V battery banks. Solis lists G99 among the planned grid connection standards for this range, so please confirm certification status with us before specifying it for a UK grid connection. Installation, commissioning and grid connection must be completed by a qualified installer, with correct DC fusing, AC protection, surge protection and earthing. The unit weighs 170kg and measures 1174 x 814 x 400mm, so plan handling and mounting accordingly.
Specifications
xModel Information
| Parameter | Value |
| Model | S6-EH3P125K10-NV-YD-H |
| Series | Solis S6 Solarator 80 to 125K |
| Inverter Type | Three Phase High Voltage Hybrid Energy Storage Inverter |
| Rated Power | 125kW |
Input DC (PV Side)
| Parameter | Value |
| Recommended Maximum PV Array Size | 250kW |
| Maximum Usable PV Input Power | 250kW |
| Maximum Input Voltage | 1000V |
| Rated Voltage | 600V |
| Start-up Voltage | 180V |
| MPPT Voltage Range | 150V to 950V |
| Maximum Input Current | 10 x 42A |
| Maximum Current per DC Input | 42A |
| Maximum Short Circuit Current | 10 x 60A |
| MPPT Number / Maximum Input Strings | 10 / 20 |
Battery
| Parameter | Value |
| Battery Type | Li-ion (high voltage) |
| Battery Voltage Range | 300V to 950V |
| Battery Ports / BMS Ports | 2 / 2 |
| Maximum Charge / Discharge Current | 100A x 2 / 100A x 2 |
| Maximum Charge / Discharge Current per Port | 100A |
| Communication | CAN |
Output AC (Grid Side)
| Parameter | Value |
| Rated Output Power | 125kW |
| Maximum Apparent Output Power | 125kVA |
| Rated Grid Voltage | 3/N/PE, 220V / 380V, 230V / 400V |
| Rated Grid Frequency | 50Hz / 60Hz |
| Rated Grid Output Current | 189.9A / 180.4A |
| Power Factor | >0.99 (0.8 leading to 0.8 lagging) |
| THDi | <3% |
Input AC (Grid Side)
| Parameter | Value |
| Maximum Input Power | 164.5kW / 173.2kW |
| Input Voltage Range | 304V to 460V |
| Maximum Input Current | 250A |
Output AC (Backup)
| Parameter | Value |
| Rated Output Power | 125kW |
| Maximum Apparent Output Power | 1.4 x rated power for 10s, 1.6 x rated power for 200ms |
| Backup Switch Time | <10ms single unit, <20ms parallel (up to 6 units) |
| Rated Output Voltage | 3/N/PE, 220V / 380V, 230V / 400V |
| Rated Frequency | 50Hz / 60Hz |
| Rated Output Current | 189.9A / 180.4A |
| Maximum AC Passthrough Current | 189.9A / 180.4A |
| THDv at Linear Load | <3% |
Input AC (Generator Side)
| Parameter | Value |
| Maximum Input Power | 125kW |
| Rated Input Current | 189.9A / 180.4A |
| Rated Input Voltage | 3/N/PE, 220V / 380V, 230V / 400V |
| Rated Input Frequency | 50Hz / 60Hz |
Efficiency
| Parameter | Value |
| Maximum Efficiency | 97.5% |
| EU Efficiency | 97.2% |
| Battery Charged by PV / AC Maximum Efficiency | 98.2% / 97.0% |
| Battery Discharge Efficiency | 97.0% |
Protection
| Parameter | Value |
| Surge Protection | DC Type II / AC Type II |
| Output Over Current Protection | Yes |
| Insulation Resistance Monitoring | Yes |
| Residual Current Detection | Yes |
| Integrated PV Switch | Yes |
| DC Reverse Polarity Protection | Yes |
| Anti-islanding Protection | Yes |
| Protection Class / Overvoltage Category | I / DC II, AC III |
| Integrated AFCI 2.0 | Optional |
General Data
| Parameter | Value |
| Maximum Power per Phase (Grid and Backup) | 33% of rated power |
| Dimensions W x H x D | 1174 x 814 x 400mm |
| Weight | 170kg |
| Topology | Non-isolated |
| Self-consumption | <45W |
| Operating Temperature Range | -25°C to +60°C |
| Relative Humidity | 0 to 100% |
| IP Rating | IP66 |
| Cooling | Intelligent redundant fan cooling |
| Maximum Operating Altitude | 3000m |
| Grid Connection Standard | G99, VDE-AR-N 4105, EN 50549-1/-2/-10, IEC 62116, IEC 61727 and others (listed by Solis as planned, confirm status before specifying) |
| Safety / EMC Standard | IEC/EN 62109-1/-2, IEC/EN 61000-6-2/-4, EN 55011 |
Features
| Parameter | Value |
| PV Connection | MC4 connector |
| Battery Connection | Terminal connector |
| AC Connection | Terminal block |
| Display | 7.0 inch LCD, Bluetooth and app |
| Communication | Wi-Fi, LAN, Bluetooth, CAN-BMS x2, CAN-Parallel x2, RS485-Meter, RS485, DRM, DI x5, DO x4; 4G optional |
| Parallel Operation | Up to 1.25MW (Solis STS cabinet recommended above 6 units) |
| Supplied With | CT or meter |
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.