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99% MPPT Efficiency

• Advanced Maximum Power Point Tracking algorithm
• Real-time voltage-current curve optimization
• Maximum energy extraction from solar panels all day
• Significantly higher water output vs conventional controllers

🔄
Seamless AC/DC Auto Switching

• Intelligent dual-input design
• Automatic switching between solar DC and grid AC
• Uninterrupted pumping during low-light or nighttime
• Customizable priority settings available

🛡️
Industrial-Grade Protection

• PV over-voltage and over-current protection
• Automatic derating against over-temperature
• Optional IP54-rated cabinet for harsh environments
• Robust design for agricultural field conditions

📱
Smart Remote Monitoring

• Integrated GPRS module with mobile app
• Real-time performance monitoring
• Remote parameter adjustment and diagnostics
• Instant fault alerts and performance tracking

⚙️
Plug-and-Play Automation

• Automatic start/stop on solar connection
• No complex parameter setup required
• Compatible with boost modules (≤2.2kW)
• Reduced installation costs and technical barriers

💰
Cost Elimination

• Eliminates diesel generator fuel costs
• No battery storage required
• Low maintenance design
• Fast ROI for agricultural operations

Does this solar pump inverter require batteries to operate?

No batteries are required. The QB100-5R5G-2-PV is a direct-drive solar pump inverter that operates pumps directly from solar panel DC power during daylight hours. For nighttime or low-light operation, the built-in AC/DC auto-switching feature allows seamless connection to grid AC power. This eliminates battery maintenance and replacement costs while ensuring reliable water supply.

Can this 5.5kW inverter work with both single-phase and three-phase water pumps?

Yes. The QB100-5R5G-2-PV (2-series) supports both 220V single-phase and 380V three-phase asynchronous pumps. The inverter automatically detects motor configuration. Note: Factory default is for asynchronous motors. If you require synchronous motor compatibility or simultaneous AC/DC input capability, please contact us for factory customization before ordering.

What protection does this inverter have against harsh outdoor environments?

The standard unit features IP20 protection suitable for enclosed electrical rooms or covered installations. For direct outdoor exposure in dusty, wet, or corrosive agricultural environments, we strongly recommend the optional IP54-rated protective cabinet. This upgrade provides enhanced sealing against dust ingress and water splashing, ensuring long-term reliability in challenging field conditions.

How does the GPRS remote monitoring work, and is there a subscription fee?

The integrated GPRS module connects to cellular networks, allowing real-time monitoring via our dedicated mobile app from anywhere with network coverage. Features include live performance data, fault alerts, and remote parameter adjustment. First-year data service is typically included with purchase; subsequent annual subscription fees apply based on regional carrier rates. Contact our sales team for specific IoT service package details and multi-unit discounts.