CHF100-022

The Maxpower CHF100-022 is a solar pump inverter (variable frequency drive) for solar water pumping in Pakistan. It runs an AC pump directly from your solar panels, converting DC power into a variable-frequency AC output of 0 to 400Hz, so the pump speed follows the available sunlight. Selected variants also accept grid or generator input, which helps keep water supply running when sunlight is low.

It uses MPPT with 99% efficiency and offers a rated input current of 22A, a PV maximum current of 45A, an AC input current of 51A and an output current of 45A. It comes in six variants (-D2, -D4, -2-T, -2, -4-T and -4) for 220V or 380V pumps, with a maximum DC voltage of 450V or 900V, so you can match the model to your panel array and pump.

For pump safety, it has integrated low-voltage, over-voltage, over-load, dry run, over-heat and surge protection, plus full-water / empty-water detection. With an IP66 rating and wall mounting, it comes with an LCD keypad and 4G / WiFi connectivity, so you can monitor the system through the IWO Cloud app and PC. Cooling is by natural or fan cooling. Explore Maxpower’s solar panels to build a complete solar pumping system, or contact us to choose the right variant.

Frequently Asked Questions

What is the CHF100-022 used for?
The CHF100-022 is a solar pump inverter that runs an AC pump from solar panels for water supply and irrigation. It adjusts the pump speed with a 0 to 400Hz variable-frequency output, and the datasheet shows it used with a submersible pump and a water tank.

What is the price of the CHF100-022 solar pump inverter in Pakistan?
The price depends on the variant and your pumping system. Contact Maxpower for the latest price and quotation.

What do the variants -D2, -D4, -2-T, -2, -4-T and -4 mean?
The number shows the output voltage: 2 = 220V and 4 = 380V. The -D2 and -D4 variants have no AC input listed, so they run on solar only, while -2, -2-T, -4 and -4-T also have an AC input. The T variants start at 100V (minimum input 70V), which suits smaller panel strings. Maxpower can help you choose the right variant for your pump and panels.

Which solar panel voltage does the CHF100-022 need?
It depends on the variant. The maximum DC voltage is 450V or 900V, and each variant has its own recommended voltage range (for example 200V to 400V for -2, and 300V to 850V for -4). Your panel string voltage must stay inside this range and never exceed the maximum.

What protections does the CHF100-022 have?
It includes low-voltage, over-voltage, over-load, dry run, over-heat and surge protection, plus full-water / empty-water detection, all integrated. These help protect the pump if the well runs dry or the tank is full.

Can the CHF100-022 be used for general industrial motor control?
The datasheet describes a solar pumping inverter, with pump-specific features such as dry run and full / empty water protection. For other motor loads such as fans, compressors or conveyors, please contact Maxpower to confirm suitability.

Why choose Maxpower for solar pumping solutions?
Maxpower offers solar panels, inverters and lithium batteries with project support for residential, agricultural and commercial customers in Pakistan.