Off-grid inverter

Syncorepower Hybrid Solar Inverter (3kW & 6kW Models)
Product Overview
Syncorepower hybrid solar inverter integrates a built-in high-current MPPT solar charge controller, pure sine wave inverter and mains charger into one compact unit. It supports dual operation modes (with or without battery) to satisfy off-grid, grid backup and residential PV energy storage scenarios. Adopting full-digital MCU SPWM control and exclusive dynamic current loop technology, the equipment delivers conversion efficiency over 94%, low noise and unattended automatic mode switching. Equipped with integrated lightning protection and full multi-layer safety protection circuits, this inverter achieves stable, safe and energy-saving power conversion for family villas, rural off-grid houses and small commercial solar systems.
Key Features
- Max PV input current up to 120A, supporting large-capacity solar array connection
- Built-in high-performance MPPT solar charge controller with wide voltage range and ultra-high current capacity
- Flexible operation: available for system deployment with or without battery packs
- Integrated lightning protection kit to boost outdoor operation safety & reliability
- Comprehensive multi-level electronic protection against overload, overvoltage, overheating and short circuit
- High-frequency topology with peak efficiency exceeding 94%, energy-saving & low noise
- Full digital MCU SPWM control technology, stable pure sine wave AC output
- Exclusive dynamic current loop control algorithm to optimize power response
- Automatic seamless mode switching, supporting 24/7 unattended operation
- 3-step adaptive charging curve compatible with flooded & sealed gel batteries
Complete Technical Specification Table
| Classification | Parameter Item | 3kW Model | 6kW Model |
|---|---|---|---|
| ### Mains Input Mode | Rated AC Input Waveform | 230Vac sine wave (mains/generator) | 230Vac sine wave (mains/generator) |
| Mains Input Voltage Range | 90–280Vac (home use) / 170–280Vac (UPS) | 90–280Vac (home use) / 170–280Vac (UPS) | |
| Max Mains Input Voltage | 300Vac | 300Vac | |
| Rated Input Frequency | 50/60Hz auto-adaptive | 50/60Hz auto-adaptive | |
| AC Input Frequency Range | 45–65Hz | 45–65Hz | |
| Mains Input Circuit Breaker | Circuit breaker | 40A | |
| Typical Transfer Time | 10ms (UPS) / 10ms (home) | 10ms (UPS) / 20ms (home) | |
| ### Inverter Output Mode | Rated Output Power | 3kVA / 3kW | 6kVA / 6kW |
| Battery-less BMS Activation | Not support | Include | |
| Output Socket Count | 1 | 2 | |
| Dry Node Function | None | Include | |
| Output Waveform | Pure sine wave | Pure sine wave | |
| Rated Output Voltage | 220/230/240Vac ±5% | 220/230/240Vac ±5% | |
| Rated Output Frequency | 50/60Hz ±1Hz | 50/60Hz ±1Hz | |
| Peak Efficiency | 94% | 94% | |
| Overload Protection | 150% load for 10s; 110–150% for 5s | 150% load for 10s; 110–150% for 5s | |
| Surge Capacity | 2× rated power for 5s protection | 2× rated power for 5s protection | |
| Rated Battery Input Voltage | 24Vdc | 48Vdc | |
| Cold Start Voltage | 23.0Vdc | 46.0Vdc | |
| Battery Under-Voltage Protection | 21Vdc | 42Vdc | |
| Battery Over-Voltage Protection | 33Vdc | 63Vdc | |
| No-Load Loss | <30W @24V | <45W @48V | |
| ### Mains Charging Mode | Max AC Charging Current | 80A (@230Vac) | 100A (@230Vac) |
| Max PV Charging Current | 80A | 120A | |
| Max Total Charging Current | 80A | 120A | |
| Charging Curve | 3-step adaptive charging | 3-step adaptive charging | |
| Constant Voltage (Flooded Battery) | 29.2Vdc | 58.4Vdc | |
| Constant Voltage (Sealed Gel Battery) | 28.2Vdc | 56.4Vdc | |
| Float Voltage | 25.4Vdc | 54Vdc | |
| ### Solar MPPT PV Input | Independent MPPT Trackers | 1 channel | 1 channel |
| Max PV Array Power | 4000W | 6000W | |
| MPPT Operating Voltage Range | 30–450Vdc | 60–450Vdc | |
| Max PV Open Circuit Voltage | 500Vdc | 500Vdc | |
| ### Communication Interface | BMS Communication | RS485 protocol | RS485 protocol |
| WIFI/APP Module | RJ45 interface, optional accessory | RJ45 interface, optional accessory | |
| ### Environmental & Mechanical | Safety Certification | CE | CE |
| Operating Temperature | -10℃ ~ +50℃ | -10℃ ~ +50℃ | |
| Storage Temperature | -15℃ ~ +60℃ | -15℃ ~ +60℃ | |
| Relative Humidity | 5%–95% non-condensing | 5%–95% non-condensing | |
| Protection Grade | IP21 | IP21 | |
| Product Dimension (WDH) | 110311367mm | 119335440mm |
Core Performance Advantages
- Ultra-Large MPPT Solar Charging Capacity
The 6kW model supports a maximum PV charging current of 120A and up to 6000W solar panels, greatly shortening off-grid battery charging time and maximizing solar energy utilization efficiency. The wide 60–450V MPPT voltage range is compatible with most mainstream solar panel combinations on the market. - Dual Working Modes for Flexible Deployment
The inverter can operate independently without battery for grid-tied power self-consumption, or match LiFePO4 / gel lead-acid batteries for off-grid backup power, adapting to diversified user demands such as rooftop self-use and remote off-grid microgrids. - High-Efficiency & Low-Noise Digital Topology
Adopting full digital SPWM control and unique dynamic current loop control technology, the peak conversion efficiency reaches over 94%. Low-noise hardware design reduces running disturbance for home and office scenarios, realizing energy-saving and eco-friendly power conversion. - Unattended Automatic Operation
Intelligent automatic switching between solar charging, mains charging and inverter output modes; no manual intervention required, supporting long-term 24-hour unattended operation for remote sites. - All-Round Safety Protection System
Built-in professional lightning protection kit, plus multi-layer electronic protection including overload, overvoltage, under-voltage, short-circuit and overheat auto-shutdown functions, effectively avoiding equipment damage and fire risks during outdoor operation. - Complete Battery Compatibility & Intelligent Charging
3-stage adaptive charging curve optimizes charging parameters for flooded and sealed gel batteries separately, extending battery cycle life; RS485 BMS communication realizes real-time battery status monitoring.
Comprehensive Protection Functions
- Overload & surge power protection with time-delay automatic cut-off
- Battery over-charge, under-discharge and over-temperature protection
- PV over-voltage, reverse polarity and lightning surge protection
- AC input over/under voltage and frequency out-of-range protection
- Internal overheat protection with fan linkage cooling
- Short-circuit automatic lockout recovery protection
Main Application Scenarios
- Residential rooftop solar self-consumption & household power backup
- Rural off-grid independent photovoltaic power supply systems
- Villa, farm and small workshop energy storage power stations
- Remote mountain, island and construction site temporary power supply
- Small commercial shops, office backup power & solar microgrid projects
Why Choose Syncorepower?
Syncorepower hybrid solar inverters integrate advanced MPPT solar control, high-efficiency pure sine wave inversion and multi-scenario adaptive charging technology. Every unit passes full aging, high-voltage safety and performance testing before delivery. Our dual-capacity 3kW/6kW models, flexible battery-free operation design and comprehensive multi-protection circuits provide cost-effective all-in-one solar power conversion solutions for global residential and small commercial PV energy storage projects.
