US Version UL Certification KE-F Series 10kW/12kW Hybrid Solar Inverter – Off-Grid & Backup Power

Take full control of your energy independence with the KE-F Series high-power off-grid inverter. 

Designed for US homes, cabins, workshops, and small commercial sites, this 48V pure sine wave inverter delivers reliable backup power and solar self-consumption. Whether you are upgrading an existing off-grid system or building a new one, the KE-10KCSL5UF (10kW) and KE-12KCSL5UF (12kW) offer unbeatable value without sacrificing performance.

Why choose the KE-F Series?

• Massive power reserve – 10kW/12kW rated output, with 20kW/24kW peak power (10 seconds), handles heavy loads like well pumps, AC units, and power tools.

• Up to 6 units in parallel – Expand your system to 72kW (6 x 12kW) for whole-home backup or light commercial use.

• Dual MPPT solar input – 15,000W (10kW model) / 18,000W (12kW model) max PV power. Track efficiency up to 99% – harvest more energy even in low light.

• Smart battery management – 48V battery bank (40-60V range), compatible with lead-acid and LiFePO₄. Adjustable charge current up to 180A (10kW) / 200A (12kW).

• Fast 10ms transfer time – Seamless switchover from grid/generator to battery, keeps your sensitive electronics running.

• High efficiency – Max efficiency 97.6% (96.5% typical), lower energy loss and less heat.

• Wide AC input range – 90-280V, works with unstable grids or generators.

• Quiet & cool – Intelligent fan, noise ≤45dB @1m (77°F).

• Complete protection – Over‑temp, overload, short circuit, PV reverse polarity, battery over‑voltage, leakage, and surge protection (DC Type II / AC Type III).

Technical highlights (both models)

• Output waveform: Pure sine wave (THDi <3% at rated power)

• Transfer time: 10ms typical (max 20ms single, 30ms parallel)

• MPPT operating voltage: 125-425V (max open circuit 500V)

• Eco mode: Yes

• IP20 rating (indoor use)

• Dimensions: 620×470×147 mm | Weight: 25.5 kg

• Operating temperature: -10℃ to 55℃

• Warranty: 1 year (extended options available on request)

What’s in the box?

• 1× KE-F Series inverter (model of your choice)

• 1× User manual (English)

• 2× AC output cables

• 1× communication parallel cable

• 1× BMS dry contact cable