Kunda 70M solar submersible pump with the control box

The Kunda 70M solar submersible pump is a common model for deep-well solar water pumping systems, typically sold as a kit including the pump and its control box (controller).

Here is a summary of the general specifications and features:

General Specifications

• Maximum Head (Lift): Approximately 70 meters (this is the maximum vertical distance the pump can push the water).
• Power: Usually around 600 Watts (W).
• Flow Rate (Discharge): Often around 3 cubic meters per hour (m3/h) or approximately 50 liters per minute ($\text{L}/\text{min}$) at the stated maximum head.
• Voltage: Typically a 72V DC system (sometimes listed as $48\text{V}$ nominal, running up to $72\text{V}$ or more from solar panels).
• Motor Type: Commonly a Brushless DC (BLDC) motor for high efficiency and long life.
• Outlet Size: Often 1 inch.