Solar Sales recommend and sell only the most energy efficient range of pump/motor units to ensure peak performance at the lowest cost.

Our submersible range of bore hole pumps use a positive displacement helical rotor pump coupled to a DC brush-less motor with an efficiency greater than 90%.

The special controller that interfaces between the solar array and the motor uses MPPT technology to enhance the performance of the solar array. In this way motor speed and therefore water delivery is directly proportional to solar radiation levels.

Another advantage of the high efficiency of our motors is that there is no appreciable heat build up in the motor and there-fore no additional cooling is required even with water temperatures up to 40° Celsius. Ceramic bearings ensure water tight protection for the motor.

The submersible pump sets will fit down a 4" (100mm) hole and dry run protection is built into each unit.