⚡ High-Efficiency Power Conversion

• Advanced MPPT technology with >99.6% tracking efficiency maximizing solar yield
• Dual power input: AC grid (380V) and DC solar with seamless auto-switching capability
• Extended output frequency range: 0-600Hz for precise flow control
• Compatible with PMSM and standard asynchronous induction motors
• Vector control mode for high-torque deep well pump applications

🛡️ Industrial-Grade Protection

• Dry-run protection automatically stops pump when water source depletes
• Loss-of-phase protection prevents motor damage from power imbalances
• Integrated strong lightning protection for outdoor installations
• IP20 standard enclosure (IP55/IP65 options available for harsh environments)
• Overvoltage, undervoltage, and overload protection circuits

📡 Smart Automation & Monitoring

• Built-in WiFi module for real-time monitoring and remote parameter adjustment
• Water level control port for automated start/stop based on tank/reservoir levels
• Auto sleep mode activates when solar irradiance drops below operational thresholds
• Optional GPRS module for remote area monitoring without local network
• Clock relay card enables programmable operating schedules
• LED/LCD display with intuitive navigation and fault code display

💰 Operational Cost Savings

• Eliminates diesel fuel costs and generator maintenance expenses
• Fully automatic operation reduces manual supervision requirements
• Soft-start functionality reduces mechanical stress and extends pump lifespan
• Wide operating temperature range: -25°C to +60°C for global deployment
• Altitude derating capability up to 4,000m with appropriate current reduction

Does the 11PV 4KW solar pump inverter require batteries to operate?

No. The 11PV is a battery-less solar pump inverter that operates directly from solar panel DC input or AC grid power. It converts energy in real-time to drive your 4KW pump motor, eliminating the cost and maintenance of battery banks. The >99.6% MPPT efficiency ensures maximum power extraction from your PV array, delivering water when the sun shines without energy storage overhead.

Can this 4KW inverter run my existing 5.5HP 3-phase pump?

Yes. The 11PV-4K0GB-4T is specifically rated for 4.0KW (5.5HP) pumps. It supports both PMSM (Permanent Magnet Synchronous Motors) and standard asynchronous (induction) motors, outputting 3-phase 380V at 0-600Hz. The 10A rated current and vector control mode provide sufficient starting torque for deep well submersible pumps and surface centrifugal pumps commonly used in agricultural irrigation and industrial water supply systems.

What happens when solar power is insufficient or during cloudy weather?

The 11PV features intelligent AC/DC seamless switching. When connected to AC grid power, it automatically supplements or switches to grid supply when solar irradiance drops. In pure solar mode, the inverter enters auto sleep mode when DC input falls below the minimum operating threshold (approximately 486V), then resumes operation automatically when sunlight returns. The optional clock relay card allows scheduling pump operation during peak solar hours to maximize efficiency and water delivery.

How does the water level control system protect my pump?

The dedicated water level control port accepts float switch or pressure sensor inputs. If the water source (well, tank, or reservoir) drops below safe operating levels, the inverter immediately executes dry-run protection to stop the pump, preventing seal damage, overheating, and impeller wear. The system can also interface with storage tank level sensors to enable automatic fill control—stopping when full and restarting when levels drop, enabling true 24/7 unattended operation for irrigation and water supply systems.