Off-grid Single-phase 3kW inverter
The off-grid single-phase 3kW inverter is the core control device for areas without electricity, rural self-built houses, guesthouses, small construction sites, and as a backup for households. It integrates MPPT solar charging + pure sine wave inverter + battery management; 48V battery compatible (suitable for 51.2V lithium battery), with a maximum charging current of 80A; 120–250V wide-range MPPT, supporting direct drive of photovoltaic power; it can be paralleled for expansion, providing stable pure sine wave output even with inductive loads, and can be connected to a generator for supplementary power supply in rainy days, ensuring worry-free independent off-grid power supply.
Product Advantages
- Ratedpower 3KW, power factor 1
- MPPTranges 120V~250V
- Highfrequency inverter with small size and light weight
- Puresine wave AC output
- Solarand utility grid can power loads at the same time
- With CAN/RS485 for BMS communication
- With the ability to work without battery
- Parallel operation up to 6 unit (only with battery connected)
- WIFI/GPRS remote monitoring (optional)
Single-phase off-grid 3kW Inverter Parameters
Inverter in detail
Parallel Installation Guide
This inverter can be used in parallel with three different operation modes.
Off-grid Single-phase 3kW inverter Purchase Guide
1. Rural houses without electricity / houses with weak electricity that are self-built: The entire house is independently powered by 3kW, capable of powering air conditioners, refrigerators, lighting, and washing machines. It is off-grid and self-sufficient.
2. Large-sized villas / manors: Backup power supply: In case of power outage, seamless switching is achieved to ensure continuous power supply for all critical loads.
3. Homestays / rural lodges: Off-grid power supply + save on peak and off-peak electricity costs: During the day, solar power is used for self-consumption + energy storage, and at night, the battery supplies power, reducing electricity costs and enhancing the accommodation experience.
4. Small-scale livestock farms / agricultural greenhouses: Independent power supply: It can power oxygenators, water curtains, lighting, and surveillance systems, ensuring stable operation even without grid power.
5. Outdoor construction sites / mining base stations: Off-grid backup:off grid,solar power + energy storage provides independent power supply, allowing for remote monitoring without personnel presence.
Off-grid working principle
FAQ
This is a pure stand-alone inverter, providing independent power supply in areas without grid power; when there is grid power, it can serve as a backup power source, and automatically switches to the stand-alone mode in case of power outage.
It supports battery-free startup. On sunny days, photovoltaic power can directly power a 3kW load, making it suitable for high-power electricity usage scenarios during the day.
Pure sine wave + 200% short-term overload, easily starting induction loads such as air conditioners, refrigerators, water pumps, and motors.
Supports up to 6 units in parallel connection, with a capacity expansion to 18kW, meeting the demand for future electricity growth.
IP20 protection. It is recommended to install it indoors / under the eaves to avoid rain; wide temperature range operation, suitable for environments ranging from -25℃ to 60℃.
