Description
xVoltasol 15kW Three-Phase Hybrid Solar Inverter | 48V | Pylontech Compatible
The Voltasol 15kW is a three-phase hybrid solar inverter for on-grid and off-grid operation with battery energy storage. 48V DC battery input, dual MPPT with up to 22.5kW PV input, and support for Pylontech lithium and lead-acid batteries. Supplied with a three-phase energy meter, Wi-Fi card, and Modbus card. Expandable to 90kW in parallel. Manufactured and supported by Voltacon.
Key Features
- 15kW three-phase output: on-grid, off-grid, and grid-tie with backup
- Dual MPPT with up to 22.5kW maximum PV input across 4 inputs
- 48V DC battery input: compatible with Pylontech US2000C, US3000C, US5000C and lead-acid batteries
- BMS communication via RS485 for Pylontech battery management
- Pure sine wave output
- Programmable supply priority: PV, Battery, or Grid
- User-adjustable battery charging current up to 300A
- Parallel operation: up to 6 units (90kW total output)
- Built-in timer for programmable on/off scheduling
- Multiple communications: USB, RS-232, Modbus, SNMP
- Wi-Fi monitoring card included
- Three-phase energy meter included
- Modbus card pre-installed
Product Overview
The Voltasol 15kW three-phase hybrid inverter is designed for commercial and large residential installations that require a high-output hybrid system with battery backup. By combining solar generation, battery storage, and grid connection in a single unit, the system maximises self-consumption and provides backup power during grid failures.
The 22.5kW maximum PV input gives headroom for oversizing the solar array relative to the inverter output, which improves generation during low-irradiance conditions. The 300A maximum charging current allows a large Pylontech or lead-acid battery bank to be charged rapidly from the solar array or grid.
Parallel operation with up to 6 units is supported, enabling three-phase systems to be scaled to 90kW without the need for a larger single unit. The communication boards required for parallel operation are included.
For 0% VAT supply and installation enquiries, please contact us.
Technical Specifications
| Parameter | Value |
| Rated Output Power | 15000W (15kW) three-phase |
| Max PV Input Power | 22500W across 4 inputs, 2x MPPT |
| Battery Voltage | 48V DC |
| Max Charge Current | 300A |
| Battery Compatibility | Pylontech lithium (BMS), lithium-ion, GEL, AGM |
| Output Waveform | Pure sine wave |
| Operating Modes | Grid-tie, off-grid, grid-tie with backup |
| Parallel Units | Up to 6 (90kW total) |
| Communications | USB, RS-232, Modbus, SNMP, Wi-Fi |
| Included Accessories | 3-phase energy meter, Wi-Fi card, Modbus card |
| SKU | 9990210 |
Applications
- Large residential and commercial three-phase hybrid solar PV and battery storage systems
- On-grid installations with battery backup for power outage resilience
- Off-grid commercial and agricultural sites requiring three-phase power
- Scalable installations where future expansion beyond 15kW is anticipated
Installation and Safety Notes
Must be designed and installed by a qualified electrician or MCS-accredited solar installer. Battery storage systems must be installed in accordance with BS EN 62619 and local building regulations. Three-phase grid connection requires G99 application and DNO approval. Correct cable sizing, fusing, isolators, surge protection, and earthing are essential. Do not attempt DIY installation of three-phase hybrid inverter and battery systems.
Specifications
x| MODEL | InfiniSolar Three Phase 15KW |
| PHASE | 3-phase in / 3-phase out |
| Maximum PV Input Power | 22500 W |
| RATED OUTPUT POWER | 15000 W |
| MAXIMUM CHARGING POWER | 15000 W |
| GRID-TIE OPERATION | |
| Nominal DC Voltage / Maximum DC Voltage | 720 VDC / 900 VDC |
| Start-up Voltage / Initial Feeding Voltage | 320 VDC / 350 VDC |
| MPP Voltage Range | 350 VDC ~ 850 VDC |
| Number of MPP Trackers / Maximum Input Current | 2 / A: 37.65A; B: 18.6A |
| GRID OUTPUT (AC) | |
| Nominal Output Voltage | 230 VAC (P-N) / 400 VAC (P-P) |
| Output Voltage Range | 184-264.5 VAC Per phase |
| Nominal Output Current | 21.7 A Per phase |
| Power Factor | > 0.99 |
| Maximum Conversion Efficiency (DC/AC) | > 96% |
| OFF-GRID OPERATION | |
| Nominal Output Voltage | 230 VAC (P-N) / 400 VAC (P-P) |
| Max. Output Current | 21.7 A Per phase |
| Power Factor | > 0.99 |
| BATTERY & CHARGER | |
| Nominal DC Voltage | 48 VDC |
| Maximum Charging Current | Default 60A, 5A - 300A (Adjustable) |
| Charging Curve | 3 Stage |
| PHYSICAL | |
| Dimension, D X W X H (mm) | 219 x 650 x 820 |
| Net Weight (kgs) | 62 |
| Communication Port | RS-232/USB and CAN Interface |
| OPERATING ENVIRONMENT | |
| Operating Temperature | -10 to 55°C |
| Relative Humidity | 5% to 95% RH (Non-condensing) |
| Altitude | 0 ~ 1000 m* |
*Power derating 1% every 100 m when altitude is over 1000m
** Product specifications are subject to change without further notice.
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:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- 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.