5.5KW Waterproof MPPT Solar Pump Inverter

WP-5K5 Solar Pump Controller – manufactured by Foshan Top One Power Technology Co., Ltd.

The WP-5K5 is a 5.5 kW solar pump controller manufactured by Foshan Top One Power Technology Co., Ltd., a company based in Foshan, Guangdong, which has been producing renewable energy equipment since 2003. The WP-5K5 is part of the WP Series and is intended for solar-powered water pumping systems where grid power is either unavailable or too expensive.

So what problem does the WP-5K5 actually solve? Solar panels produce DC power, but most pumps run on AC. This unit bridges that gap. More importantly, it adjusts the speed of the pump based on the amount of sunlight available, ensuring that the system does not run at full power or shut down completely. The WP-5K5 uses an MPPT algorithm to track the panels' maximum power point and convert the DC into three-phase AC to drive submersible or surface pumps. Efficiency is rated at over 99% for the tracking stage.

The WP-5K5 accepts a wide DC input range of 150–800 V, providing flexibility when configuring your PV array. The output frequency can be adjusted from 0 to 400 Hz, enabling you to match the pump speed to your specific head pressure and flow requirements.

Several features make the WP-5K5 stand out for use in the field. It supports both standalone solar operation and grid/generator hybrid mode with automatic switching. The built-in water level controller handles both low-water cut-off and tank-full shut-down, meaning the pump only runs when needed. With an IP65 rating, it is suitable for outdoor installation and can withstand dust and rain.

Protection includes over-voltage, under-voltage, overload and short-circuit protection. The unit is CE and ISO 9001 certified and is backed by the industry experience of Foshan Top One Power Technology Co., Ltd. since 2003. If you're looking for a solar pump controller that keeps water flowing without unnecessary complexity, the WP-5K5 delivers on its promises.

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