Off-Grid Inverter
Key Features
Two Battery Platforms — 24V & 48V NK series targets compact 24V off-grid systems (cabins, remote sites, small farms); PK series targets larger 48V installations with parallel expansion capability.
Up to 6-Unit Parallel (F11K) — 66kW Scalable Single F11K delivers 11kW; parallel up to 6 units to reach 66kW for larger off-grid commercial loads without additional control hardware.
Dual MPPT on F11K — 11kW PV Input Two independent MPPTs accept up to 11kW PV for faster battery charging and better generation during partial shading.
LCD Display Option (F3.5K-L) Built-in LCD on the -L variant enables on-site monitoring and parameter configuration — no laptop or app required for basic commissioning.
CE / IEC Certified — 5-Year Warranty All models CE and IEC certified. F11K adds IP65 outdoor protection for flexible installation in exposed environments.
Proven Installations
Common Questions
| Battery Voltage | 24V (21–31V) | 48V (42–62V) |
| Rated Power | 3.5kW / 4.2kW | 11kW |
| Parallel | Not supported | Supported (up to 6 units) |
| MPPT | 1 × 145V | 2 × 145V |
| Max PV | 4kW / 5kW | 11kW |
Both are 3.5kW / 24V off-grid models. The -S is the standard version; the -L includes an additional LCD display for local parameter monitoring and setting without external tools.
Yes. The F11K supports up to 6 units in parallel, enabling systems up to 66kW — suitable for larger off-grid commercial or industrial installations.
CE / IEC / UN38.3. The F3.5K/F4.2K carry IP20; the F11K is IP65 outdoor-rated. All include a 5-year warranty.
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