Skip to content Isuna XSO is a high-efficiency, reliable, and scalable off-grid inverter series. It innovatively integrates an industry-leading 97.5% maximum efficiency, up to 6 units in parallel operation, and broad compatibility with lead-acid, gel, and lithium batteries — significantly reducing energy loss and battery replacement costs while extending system lifespan. It also features 190-460% grid input power for heavy-load handling, 125-250% PV oversizing with 2-4 MPPTs to maximize solar harvest from high-power modules, and an ultra-silent smart fan that activates only at 50% rated power, ensuring quiet, maintenance-friendly operation in any environment. With a 5-year standard warranty and a wide power range of 3kW to 12kW, Isuna XSO is an ideal choice for those seeking efficient, durable, and effortlessly scalable off-grid power solutions.
The Isuna series 3-12kW three-phase hybrid inverter delivers 97.5% max efficiency with SiC technology, supporting off-grid operation, dual battery branches, and wide grid compatibility. Below are the core technical parameters for your reference.
| Model | Isuna 1000SO | Isuna 4000SO | Isuna 5000SO | Isuna 6000SO | Isuna 8000SO | Isuna 10000SO | Isuna 12000SO |
| Rated Output Power (Off-Grid) | 3kW | 4kW | 5kW | 6kW | 8kW | 10kW | 12kW |
| Max Efficiency | 97.20% | 97.20% | 97.20% | 97.20% | 97.20% | 97.20% | 97.20% |
| Grid Voltage Range | 176-264V | 176-264V | 176-264V | 176-264V | 176-264V | 176-264V | 176-264V |
| Max PV Input Power | 6600Wp | 8000Wp | 9000Wp | 9000Wp | 14000Wp | 18000Wp | 18000Wp |
| MPPT Trackers | 2 | 2 | 2 | 2 | 4 | 4 | 4 |
| Battery Input Branches | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Battery Voltage Range | 42-58V | 42-58V | 42-58V | 42-58V | 42-58V | 42-58V | 42-58V |
| Max Charge/Discharge Current | 60A+60A | 80A+80A | 100A+100A | 100A+120A | 200A+200A | 200A+200A | 200A+200A |
| On/Off-Grid Switching Time | ≤10ms | ≤10ms | ≤10ms | ≤10ms | ≤10ms | ≤10ms | ≤10ms |
| Protection Rating | IP20 | IP20 | IP20 | IP20 | IP20 | IP20 | IP20 |
| Operating Temperature | -25℃~+60℃ | -25℃~+60℃ | -25℃~+60℃ | -25℃~+60℃ | -25℃~+60℃ | -25℃~+60℃ | -25℃~+60℃ |
Isuna Series Single Phase Solar Inverter – Our Energy Storage Manufacturing Base NASCCLAMP’s Isuna series hybrid inverters are proudly manufactured in our state-of-the-art energy storage production facility, equipped with advanced automated production lines, precision testing equipment and a professional R&D team.We implement strict quality control throughout the entire process—from core component procurement, SiC chip assembly, to full-load aging testing—ensuring every inverter delivers high efficiency, stable off-grid switching and long-term reliable performance. Backed by our vertically integrated supply chain (including our Meizhou PV module factory), we guarantee sufficient production capacity, on-time delivery and customized solutions for global residential, commercial and industrial energy storage projects.
Custom Solar Solutions for Your Every Need
We provide clients with one-to-one professional support and one-stop solar lighting & energy storage solutions, from design to delivery and after-sales.
Backed by our professional R&D team, we keep developing innovative and patented designs. Most of our solar lights and energy storage products are independently developed and exclusive to our supply chain.
NASCCLAMP has built long-term partnerships with clients in more than 100 countries and regions worldwide. We are a trusted and stable supplier for distributors, contractors and project buyers.
As a professional source manufacturer, our modern factory supports large-scale stable production. Our supply capacity can fully meet your bulk orders, project demands and OEM&ODM requirements.
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