China Solar MPPT Pump Inverter 25-250KW - Efficient PV System Solutions from Trusted Suppliers and Factory
Solar Pump Inverter

China Suppliers Factory Solar MPPT Pump Inverter 25-250KW for Optimal Solar Energy Utilization

Bangzhao Electric’s SPI series Solar MPPT Pump Inverter is a critical component of the photovoltaic (PV) pump inverter system, designed to convert direct current (DC) output from solar panels into alternating current (AC) to efficiently drive water pumps. This innovative inverter adjusts output voltage and frequency in real time based on varying sunlight intensity, ensuring maximum power point tracking and optimal utilization of solar energy. As a leading manufacturer and supplier in China, our factory is dedicated to providing high-quality solar solutions that enhance energy efficiency and sustainability for various applications

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Product Features
  • 1
    VI maximum power point tracking (MPPT) algorithm, fast response speed, running stability, to solve the traditional MPPT method question of poor tracking effect, unstable running and even the problem of water hammer damaged under rapidly changes in the intensity of sunlight.
  • 2
    Adopting high-efficiency IPM (intelligent power module) from Mitsubishi with powerful protection function and high stable performance.
  • 3
    The system runs automatically, without human duty, saving a lot of manpower.
  • 4
    Adopted new type of variable frequency driver (VFD) technology, ensuring the pump can also work in the case of less sunshine, greatly improving efficiency and maximum utilization of solar array.
  • 5
    Full digital control, automatic operation, data storage, and perfect protection function, timing power on/off set — can achieve unattended operation.
  • 6
    LCD display operating panel — can set various parameters through LCD, easy to operate, and you can view and set various operating parameters.
  • 7
    Complete protection function for PV input under voltage, PV input over voltage, input connection reverse polarity, DC over current, output over load, short circuit, dry well, overflow, dry running, and blocking protection.
  • 8
    Based on the design concept of developing environmental protection and economical PV products — choose water storage to replace battery storage, no battery device, direct drive pump, the unit with high reliability, and at the same time greatly reduce construction and maintenance costs.
  • 9
    System modular design, stable operation, high reliability and safety — installation and maintenance is very convenient.
  • 10
    Equipped with RS485 data communication for remote monitoring (Optional).
Solar Pump Inverter Product

Application Scope
Solar Pump Inverter Application Scope

Product Parameters
Model Adapted Pump Motor Max PV Input Power (KWP) Rated DC Input Voltage (V) Recommend MPPT Input Voltage (V) Rated AC Output Current (A) Output Frequency (HZ) Protection Degree
Rated Power (KW) Rated Voltage (V)
SPI-1500W 1.1~1.5 200~220 1.85 360 300~600 9 0~50/60 IP65
SPI-2200W 2.2 3 13
SPI-3700W 3~3.7 4.5 22
SPI-5500W 4.5~5.5 380~480 7 600 400~800 11
SPI-7500W 7.5 9 15
SPI-11KW 9.2~11 13 22
SPI-15KW 13~15 18 30
SPI-18KW 18.5 21 35
SPI-22KW 22 25 45
SPI-30KW 26~30 35 60
SPI-37KW 37 45 75 IP20
SPI-45KW 40~45 53 90
SPI-55KW 55 65 110
SPI-64KW 64 76 130
SPI-75KW 75 88 150
SPI-90KW 90 113 180
SPI-110KW 110 130 220
SPI-132KW 132KW 156 260
SPI-150KW 150KW 176 300

Frequently Asked Questions (FAQ)
Q
What is MPPT and why is it important for a solar pump inverter?
MPPT (Maximum Power Point Tracking) is an algorithm that continuously adjusts the electrical operating point of the solar panels to extract the maximum available power. For solar pump inverters, this ensures the pump operates efficiently even under rapidly changing sunlight conditions, preventing issues like water hammer and unstable running.
Q
Can the solar pump inverter operate without batteries?
Yes. This system is designed to directly drive the pump using solar energy without any battery storage device. Instead, water is stored in a tank, replacing the need for battery storage. This greatly reduces construction and maintenance costs while improving overall system reliability.
Q
What protection features does the solar pump inverter provide?
The inverter offers comprehensive protection including PV input under/over voltage, reverse polarity protection, DC over current, output overload, short circuit, dry well, overflow, dry running, and blocking protection — ensuring safe and reliable long-term operation.
Q
What is the available power range for the SPI series solar pump inverter?
The SPI series covers a wide power range from 1500W (SPI-1500W) up to 150KW (SPI-150KW), making it suitable for small residential water supply systems as well as large-scale agricultural irrigation and industrial applications.
Q
Does the solar pump inverter support remote monitoring?
Yes. The inverter is optionally equipped with RS485 data communication, enabling remote monitoring and control of the system. This makes it ideal for unattended installations in remote areas such as farms, deserts, or mountainous regions.
Q
What is the difference between IP65 and IP20 protection ratings in the SPI series?
IP65-rated models (SPI-1500W to SPI-30KW) are fully dust-tight and protected against water jets, making them suitable for outdoor installation. IP20-rated models (SPI-37KW to SPI-150KW) are designed for indoor or enclosure-based installation, protected against solid objects larger than 12.5mm but not against water ingress.

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