7KW DSP Controlled Low Frequency Inverter

FSI-70248M60 Low-Frequency Hybrid Inverter – Manufactured by Foshan Top One Power Technology Co., Ltd.

The FSI-70248M60 is a 7KW low-frequency hybrid inverter from Foshan Top One Power Technology Co., Ltd., a company based in Foshan, Guangdong that has been in the new energy space since 2003--18. It belongs to their FSI series and is designed for off-grid solar systems, whether you're setting up power for a house, a small commercial space, or a remote site that needs reliable electricity-32.

What stands out about the FSI-70248M60 is the built-in toroidal transformer. It puts out 7KW continuously and can push up to 21KW for short bursts when needed-32-. That extra surge capacity matters-motors, compressors, air conditioners, and water pumps all draw a lot more current when they start up than they do while running, and this inverter handles that without tripping or shutting down-32. The output is pure sine wave with low harmonic distortion, so it won't cause issues with sensitive electronics.

The unit comes with an MPPT solar charge controller built in. It tracks the solar panels' maximum power point in real time and adjusts to changing light conditions throughout the day-32. You also get an AC battery charger with a three-stage profile-bulk, absorption, and float-which helps keep batteries in good shape over the long run. The FSI-70248M60 works with sealed, AGM, gel, flooded, and LiFePO₄ batteries-32. There's an automatic transfer switch that moves between battery and AC input in under 4ms, so the lights don't flicker when the grid drops out.

You can choose between three operating modes: AC priority (saves battery by running off the grid when available), battery priority (maximizes solar usage), and power save mode (cuts standby consumption)-32. The LCD screen shows voltage, load, battery status, and system info clearly-32. Protection covers over-voltage, under-voltage, overload, over-temperature, and short circuits, with reverse connection protection for the solar input as well-32.

Foshan Top One Power holds ISO9001, CE, and FCC certifications-. The FSI-70248M60 is built for real-world use-straightforward, capable, and dependable for anyone who needs off-grid power that actually works.

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