Overview
The Sol-Ark Limitless 15K (15K-2P-N) is America's most searched-for residential hybrid inverter — an all-in-one unit combining a 15,000W inverter, three MPPT solar charge controllers, a 275A battery charger and an automatic transfer system in a single NEMA 3R outdoor-rated enclosure. Grid-tie, off-grid, or hybrid with battery backup: one unit does it all, backed by a 10-year warranty and US-based support.
Key Features
- 15,000W continuous AC output, 120/240V split-phase (120/208V compatible)
- 19,500W max PV input across 3 independent MPPTs (up to 2 strings each, 500Voc max)
- 200A grid passthrough with integrated 200A AC output breaker
- 275A battery charge/discharge — 48V lithium (closed-loop) or lead-acid, or battery-less operation
- Grid-tie, off-grid and time-of-use modes with seamless transfer
- NEMA 3R / outdoor rated; parallel-stackable; 10-year standard warranty
Technical Specifications
| Continuous AC Output | 15,000 W |
| AC Voltage | 120/240 V split-phase; 120/208 V |
| Max PV Input | 19,500 W, 3 MPPTs (500 Voc max) |
| MPPT Operating Range | 175–425 V |
| Grid Passthrough | 200 A |
| Battery Charge/Discharge | 275 A @ 48 VDC nominal |
| Enclosure | NEMA 3R (outdoor) |
| Unit Dimensions (H×W×D) | 31.8 × 19.4 × 12 in (807 × 494 × 306 mm) |
| Unit Weight | 135 lb (61.2 kg) |
| Warranty | 10 years |
Specifications verified against the manufacturer's official documentation: Sol-Ark official 15K-2P documentation.
Applications
The ideal power core for off-grid and backup-powered water treatment: pair with a 48V LiFePO4 battery bank and solar array to run RO systems, booster pumps and UV sterilizers day and night. ForeverPure engineers size the inverter, battery and array around your water system's duty cycle.
Frequently Asked Questions
Can the Sol-Ark 15K run my whole home or facility?
Yes — with 15kW continuous output and 200A grid passthrough it backs up a full 200A service. Heavy motor loads start easily thanks to high surge capacity; we recommend a load review for well pumps and RO booster pumps, which we can do for you.
Which batteries work with it?
Any 48V nominal battery bank. It communicates closed-loop with major LiFePO4 brands including the Pytes E-Box 48100R we carry, and also supports lead-acid banks or operation with no battery at all.
Does it work off-grid?
Yes. It is a true hybrid: grid-tie, off-grid island mode, and automatic backup with seamless transfer are all built in.
Do I need a separate charge controller?
No — three MPPT solar charge controllers are built in, supporting up to 19,500W of PV.
Is this product in stock?
Availability changes frequently. Contact us at 408-969-2688 or sales@foreverpureplace.com for current stock and lead time — most items ship within days.
How is this item shipped?
Due to its size and weight this product ships by LTL freight on a pallet, fully insured with liftgate delivery available. We quote freight to your ZIP code before charging anything — contact us for a delivery estimate.
Documents & Downloads
All documents open directly from the manufacturer's official website.
