QB-Hi upgrade hybrid off-grid solar inverter, 4kW–11kW full power output with IGBT module. Daytime battery-free operation, 5-year warranty. Get a quote today!
Daytime-use off-grid solar inverter with 99% maximum conversion efficiency and full power output across 4kW, 5.5kW, 7.5kW, and 11kW models. A wide 160–390VDC MPPT window, battery-less daytime operation, and industrial IGBT module design deliver reliable solar power for homes, farms, and commercial loads—with seamless utility grid backup.
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| Parameter | Hi-4KW | Hi-5.5KW | Hi-7.5KW | Hi-11KW |
|---|---|---|---|---|
| PV Input Parameters | ||||
| Max Input Voltage | 400 VDC | |||
| Rated Input Voltage | 330 VDC | |||
| MPPT Working Voltage Range | 160 – 390 VDC | |||
| AC Output Parameters | ||||
| Rated Output Power | 4 KW | 5.5 KW | 7.5 KW | 11 KW |
| Rated Output Current | 18 A* | 25 A* | 34 A* | 49 A |
| Max Output Power | 4 KVA | 5.5 KVA | 7.5 KVA | 11 KVA |
| Rated Output Voltage | L/N 220 / 240 VAC (Single-phase) | |||
| Output Waveform | Pure Sine Wave | |||
| Allowable Output Frequency | 45 – 55 Hz | |||
| Maximum Efficiency | 99% | |||
| Overload Capability | 1.2× Sustained Overload | |||
| Protection & General | ||||
| Protection Functions | DC Reverse, AC Short Circuit, Lightning (Built-in DC SPD), Leakage Current, Overload, Over-Temperature | |||
| Output Modes | 3 Selectable Output Modes | |||
| Enclosure & Cooling | Metal Casing, Forced Heat Dissipation | |||
| Protection Rating | IP21 (Indoor Installation) | |||
| Display & Control | LCD Interface, One-Click Intelligent Switch, Real-Time Monitoring | |||
| Certifications | CE, ISO 9001, SGS | |||
| Warranty | 5 Years (Guaranteed) | |||
*Current values calculated at 220VAC nominal—contact our engineering team to confirm final ratings per variant. Specifications subject to change without notice.
Power air conditioners, refrigerators, washing machines, TVs, and PCs directly from sunlight—cutting daytime electricity bills without battery investment.
Daytime irrigation pumps, ventilation fans, and cold storage loads powered by free solar energy with utility grid fallback.
Shops, offices, and workshops with heavy daytime consumption—4kW to 11kW models matched to your load profile.
Factory-direct supply from a 35,000+ m² manufacturing base with 20+ years of experience—OEM/ODM branding and custom configurations available.
No. The QB-Hi series is designed for battery-less daytime operation. It powers your loads directly from solar panels while the sun shines and switches seamlessly to the utility grid when solar generation is insufficient. Three selectable output modes let you configure solar/grid priority to match your application.
The QB-Hi accepts a wide MPPT working voltage of 160–390VDC (400VDC max input, 330VDC rated), supporting 250–400V ultra-wide voltage operation. This gives installers flexible string sizing—typically 6–10 standard panels in series per string. Our engineers provide free string configuration for your specific panel model.
Yes. The QB-Hi supports 1.2× sustained overload and delivers pure sine wave output, making it suitable for inductive loads like water pumps, fans, and air conditioner compressors. Select a model with rated power above your load’s starting surge—the 11kW model handles up to 49A rated output current.
Every QB-Hi inverter carries a guaranteed 5-year manufacturer warranty backed by factory-direct technical support. Production is CE, ISO 9001, and SGS certified at our 35,000+ m² manufacturing facility with over 20 years of power electronics experience. OEM/ODM orders are welcome.
Our engineers provide complimentary load analysis, PV string configuration, and system sizing for your 4kW–11kW application. Bulk discounts available for installers, distributors, and EPC contractors.
📧 info@vfdinverters.com | 📱 WhatsApp/WeChat: +86 183 5724 1165
🌍 Serving solar projects in Southeast Asia, Middle East, Africa & Latin America | OEM/ODM Available
| Power Rate | 4kw、5.5kw、7.5kw、11kw |
Our engineers will recommend the right configuration for your application.
📞 +86 183 5724 1165 (WeChat / WhatsApp) | ✉️ info@vfdinverters.com
