SAJ PDS33 Solar Pump Controller – Intelligent Solar Water Pumping Solution
Saj Electric
The SAJ PDS33 Solar Pump Controller is an intelligent variable-frequency controller designed to operate water pumps directly from solar PV power. With a high-efficiency MPPT algorithm, automatic pump speed control, and integrated protection functions, the PDS33 provides a reliable and energy-efficient solution for agricultural irrigation, deep-well pumping, water supply, and other solar pumping applications.
The SAJ PDS33 is a high-performance solar pump controller developed for applications where conventional electricity is unavailable, unreliable, or costly.
The controller uses an integrated MPPT algorithm to continuously track the maximum power point of the photovoltaic array, allowing the available solar energy to be efficiently converted into power for the pump. Its variable-frequency control automatically adjusts pump speed according to available solar power and water demand.
The PDS33 supports both DC photovoltaic input and AC auxiliary power, depending on the model, allowing it to operate with solar PV as well as a conventional grid or generator supply. This makes it suitable for standalone solar pumping systems as well as hybrid pumping applications.
Built-in protection functions include overvoltage, undervoltage, overload, short circuit, overheat, surge, dry-run/lack-of-water and locked-pump protection, helping improve system reliability and protect the pump and controller during abnormal operating conditions.
The PDS33 also supports RS485 communication for system monitoring and control, with optional remote monitoring solutions available depending on the configuration. Its applications include agricultural irrigation, deep-well pumping, water supply, water treatment, livestock water supply, and other water pumping systems.