Anern 4KW Single-Phase US-Standard Solar Inverter is an off-grid all-in-one unit integrating inversion and solar charging functions. It delivers pure sine wave AC power and is compatible with 100/110/120/127VAC single-phase loads. Breaking the mandatory reliance on batteries seen in conventional devices, it can power loads directly from solar energy without batteries, bringing greater flexibility in project design. Built on an integrated hardware structure, the unit supports flexible input of various energy sources and keeps the whole power supply system operating steadily. It meets current market demands for standalone photovoltaic power supply and provides customers with high-quality energy solutions.
4KW Single-Phase US-Standard Solar Inverter Parameter
| Model | AN-FGI-S4000NA |
| Rated Output Power | 4000W |
| Maximum PV Input Power | 5000W |
| Phase | 1-phase in /1-phase out |
| MPPT Voltage Range | 60-450Vdc |
| Number of MPPT Trackers /Maximum Input Current | 1/18A |
| Nominal Output Voltage | 100/110/120/127VAC |
| Acceptable Input Voltage Range | 110/120; L+N+PE |
| Frequency Range | 50 Hz/60 Hz(Auto sensing) |
| Nominal DC Voltage | 24Vdc |
| Maximum Solar Charging Current | 100A |
| Maximum AC Charging Current | 100A |
| Maximum Charging Current | 100A |
| DimensionDxWxH(mm) | 445x325x125mm |
| Net Weight (kg) | 7.3kg |
Advantages of 4KW Single-Phase US-Standard Solar Inverter

Dual-source Automatic Lithium-battery Activation
It can automatically wake up dormant lithium batteries via both AC mains and PV solar input. No on-site manual commissioning by technicians is required, improving the deployment and recovery efficiency of the entire power supply system.

Stable & High-quality Power Output
It outputs pure-sine-wave AC power with great compatibility for various electrical loads. It ensures smooth operation of connected loads and lowers the risk of appliance failures caused by poor power waveforms.

Battery-free Operation Supported
No battery bank is mandatory. Loads can be driven directly by photovoltaic input, cutting project hardware investment and enabling greater flexibility in solution design.

Dust-resistant for long-term service
Equipped with a built-in anti-dust kit, it resists dust intrusion on-site, reduces component wear induced by environmental conditions, guarantees long-term stable operation and effectively extends the overall service life of the unit.
4KW Single-Phase US-Standard Solar Inverter Factory
Anern Solar Inverter Factory is a professional manufacturer of solar inverters, dedicated to the design and R&D of solar inverters. All products are ISO9001, CE, ROHS, and TUV certified, fully complying with international quality standards. With advanced production facilities and a highly skilled R&D team, we carry out continuous iterative optimization to improve inverter operating efficiency, overall durability and project adaptability.

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