The APC-30-250 pump controller is designed to interface between a solar PV array and an Aquatec SWP series pump or other submersible pump (well pump) from manufacturers like Sun Pumps or SHURFLO. It is a solid-state power converter that optimizes the pump's performance with maximum power point tracking (MPPT) and automatically extends its run time with linear current boosting (LCB) to help the pump get started earlier in the day and work later into the evening when running direct from a solar panel. It also protects the pump from excessive voltage, excessive current, and running dry.
Since this pump controller runs on direct current, it can be powered directly from either a solar panel or a battery (the battery input is activated with a dip switch and the controller will cut out when input voltage goes down to 23.5V to protect the battery). Its NEMA 4 weatherproof enclosure means it can be installed in a wide variety of locations and includes a built-in ground terminal as well as a terminal for a remote tank switch (switch not included).