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Discover GREATSUNPV’s 5kW/5.5kW/6.2kW off grid inverter with pure sine wave output, wide PV input (60–450V), integrated MPPT, and battery-free operation. Ideal for home, cabin, and backup power systems.
Brand Name:
GREATSUNPVType:
5kW/5.5kW/6.2kWMax. Power:
6.2kWAC Voltage:
single phase220VAC/230VAC/240VAC,can be set,±5%Warranty:
10Ingress Protection:
IP21Dimensions:
590×380×200 mmCertification & Safety Standard:
RS4855kW 5.5kW 6.2kW Off Grid Solar Inverter Without Battery GREATSUNPV
The GREATSUNPV GSOF Series is a next‑generation off‑grid solar inverter designed for maximum flexibility, efficiency, and reliability. Available in 5kW, 5.5kW, and 6.2kW models, these units feature a true pure sine wave output, a wide PV input voltage range (60–450VDC), and an integrated MPPT solar charger. One of the standout capabilities is the ability to operate without a battery, making it an affordable entry point for solar power or a robust upgrade for existing systems.
Whether you are powering a remote cabin, a backup system for essential home loads, or a telecom station, the GS0F Series delivers clean, stable power with advanced electronic protections and an intuitive LCD display for real‑time monitoring.
Pure Sine Wave Output – Provides high‑quality AC power that protects sensitive electronics and ensures smooth motor operation.
Wide PV Input Voltage (60–450VDC) – Supports a broad range of solar panel configurations, giving you more design freedom and better energy harvest even in low‑light conditions.
Battery‑Free Operation – Can run directly from solar or AC input without a battery bank, reducing initial system cost and maintenance.
Integrated MPPT Controller – Maximises solar energy extraction with high tracking efficiency, boosting overall system performance.
Intuitive LCD Display – Clear, real‑time readout of system status, input/output values, and fault alerts for easy monitoring and troubleshooting.
Comprehensive Electronic Protection – Overvoltage, overload, short‑circuit, and overtemperature protections ensure safe and durable operation.
Dual AC Input Voltage Range – Adaptable to unstable grid conditions (110–280VAC for appliances; 170–280VAC for PC loads) with automatic frequency detection (50/60Hz).
Fast Transfer Time – Switches between power sources in just 10ms (for PC) or 20ms (for home appliances), keeping critical loads running without interruption.
| Advantage | Benefit |
|---|---|
| Cost‑Effective Solar Entry | No battery needed – start using solar power immediately with lower upfront investment. |
| High Energy Efficiency | Peak conversion efficiency of 93% reduces energy loss and lowers electricity bills. |
| Flexible Installation | Compatible with a wide range of PV panels and AC input sources (grid/generator). |
| Reliable Power Quality | Pure sine wave output ensures stable operation of computers, TVs, pumps, and medical devices. |
| Easy to Monitor | LCD screen and RS485 communication allow remote data access and system integration. |
| Durable and Safe | IP21 protection and wide operating temperature range (–10℃ to +50℃) suit various indoor environments. |
Residential Backup Power – Keep lights, refrigerators, and internet routers running during grid outages.
Remote Cabins & Off‑Grid Homes – Power your weekend retreat with solar energy, with or without battery storage.
Small Farms & Irrigation – Run water pumps and ventilation systems reliably using solar power.
Telecom & Monitoring Stations – Provide uninterrupted AC power for communication equipment in remote locations.
Emergency Preparedness – A cost‑effective solution for natural disaster backup, using solar or generator input.
Hybrid Systems – Combine solar, grid, and generator inputs to maximise energy availability and minimise fuel costs.
The inverter supports three primary system configurations (as shown in the system diagram):
| Model | GSOF-5048 | GSOF-5548 | GSOF-6248 | |
| Rated power | 5KVA/5kW | 5.5KVA/5.5kW | 6.2KVA/6.2kW | |
| Parallel capability | No | |||
| AC Output | Voltage(Battery mode) | single phase220VAC/230VAC/240VAC,can be set,±5% | ||
| Conversion efficiency(peak) | 93% | |||
| Switchover time | 10ms(PC); 20ms(Home appliance) | |||
| Wave | Pure sine wave | |||
| Battery Input |
Battery voltage | 48VDC | ||
| Float voltage | 54VDC | |||
| Overvoltage protection | 63VDC | |||
| Max.input power | 5kW | 5.5kW | 6.5kW | |
| Solar Charger | MPPT voltage range | 60~450VDC | ||
| Max.input voltage | 320VDC/500VDC | |||
| Max.input current | 18A | 27A | ||
| ACinput voltage | 230VAC | |||
| AC Charger | Voltage range | 110~280VAC(Home appliance)/170~280VAC(PC) | ||
| Frequency range | 50 Hz/60 Hz(Adaptive) | |||
| Max.charge current | 40A/80A | |||
| General Data | Weight | 9.5kg | ||
| Communication interface | RS485 | |||
| Appearance | With LCD screen | |||
| Max.charge current | 100A | 120A | ||
| Operating Environment |
Operating temperature | -10℃~+50℃ | ||
| Storage temperature | -15℃~+50℃ | |||
| Humidity | 5%~95%,Relative humidity(Non-condensing) | |||
| Protection level | IP21 | |||
| Packaging size | L 590×W 380×H 200mm | |||
GREATSUNPV is a trusted manufacturer of high‑performance solar energy equipment, committed to innovation, quality, and customer satisfaction. All products undergo rigorous testing to meet international standards, ensuring long‑term reliability and safety for your energy independence journey.
For more information on this product or to place an order, please contact us：
Email: info@greatsunpv.com
whatsapp: +86 189 1960 5188
Web: www.guruidepv.com
Copyright @ Hefei Guruide New Energy Technology Co., Ltd. 
IPv6 network supported
