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QB-Hi 5.5kW Off-Grid Solar Inverter 99% MPPT | 220V Single Phase

The QB-Hi 5.5kW is an advanced off-grid solar inverter designed for direct solar-to-appliance power without battery storage. With a max conversion efficiency of 99% , it powers 150-200㎡ homes or farms—driving 2HP water pumps, fans, and appliances directly from the sun.

  • Battery-Free Design: Specifically engineered for off-grid environments where direct PV utilization is preferred.
  • Maximum Energy Harvest: Industry-leading 99% conversion efficiency ensures minimal power loss.
  • Ultra-Wide Voltage: Supports 250-400V ultra-wide voltage operation for flexible solar array configurations.
  • Low Voltage Startup: Stable operation even at 250VDC low voltage input.
  • Built-in DC SPD: Integrated surge protection device safeguards against lightning and transients.
Available Power Ratings: 5.5kW
¥69.00 ✔ In Stock
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⚡ QB-Hi 5.5kW High-Efficiency PV-to-Load Off-Grid Inverter

The QB-Hi 5.5kW is an advanced off-grid solar inverter designed for direct solar-to-appliance power without battery storage. With a max conversion efficiency of 99%, it powers 150-200㎡ homes or farms—driving 2HP water pumps, fans, and appliances directly from the sun.

Industrial-Grade Features

☀️ 99% Efficiency & Battery-Free Operation

  • Battery-Free Design: Specifically engineered for off-grid environments where direct PV utilization is preferred.
  • Maximum Energy Harvest: Industry-leading 99% conversion efficiency ensures minimal power loss.
  • Ultra-Wide Voltage: Supports 250-400V ultra-wide voltage operation for flexible solar array configurations.
  • Low Voltage Startup: Stable operation even at 250VDC low voltage input.

🛡️ Comprehensive Protection & Reliability

  • Built-in DC SPD: Integrated surge protection device safeguards against lightning and transients.
  • Advanced Safety: Full protection against DC reverse polarity, AC short circuits, lightning, and over-temperature.
  • Robust Build: Metal casing with forced heat dissipation designed for demanding environments.
  • Sustained Overload: Supports 1.2 times sustained overload to handle motor startup surges.

⚙️ Smart Operation & Monitoring

  • One-Click Intelligence: Intelligent switch allows for simple, one-click operation.
  • Real-Time Data: Humanized LCD interface provides real-time monitoring of all operational data.
  • Pure Sine Wave: 220-240V AC output ensures compatibility with sensitive home and farm appliances.
  • Flexible Modes: 3 output mode options to suit various load requirements.

Technical Specifications — QB-Hi Series

Parameter Hi-5KW Hi-5.5KW Hi-7KW Hi-11KW
Rated Output Power 5KW 5.5KW 7KW 11KW
Max Input Voltage 400VDC
MPPT Working Range 160VDC–390VDC
Maximum Efficiency 99%
Rated Output Voltage 220/240VAC
Protection DC Reverse, AC Short, Lightning, Leakage, Over-temp
Cooling System Metal Casing + Forced Heat Dissipation

Ideal Applications

🏠 Daytime Residential

  • LED Lighting, TV, Computers
  • Ceiling Fans, Washing Machines
  • Ideal for homes with high daytime energy usage

🌾 Agricultural Facilities

  • Direct drive for 2HP water pumps for irrigation
  • Electric farm fencing and sensors
  • Daytime processing equipment and fans

📊 QB-Hi Series Selection Guide

5KW: Suitable for basic daytime household loads.

5.5KW (This Model): The sweet spot for medium-sized pumps or mixed residential loads.

7KW: Designed for high-surge appliances or larger farm machinery.

11KW: High-capacity output for light commercial and heavy industrial farm use.

Optimize Your Solar Power System Today

Zhejiang Qibin Technology Co. Ltd. provides industrial-grade off-grid solutions. OEM/ODM supported.

📧 info@vfdinverters.com | 📱 WhatsApp: +86 183 5724 1165

Visit us: www.vfdinverters.com

Power Rate5.5kw

Need Help Selecting a Model?

Our engineers will recommend the right configuration for your application.
📞 +86 183 5724 1165 (WeChat / WhatsApp)  |  ✉️ info@vfdinverters.com

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