
The 5.5kW 48V on/off-grid solar inverter provides reliable and clean AC output with high conversion efficiency and strong overload handling. Supporting feed-in to the grid and generator input, it ensures optimal flexibility in energy management. With stable performance and durable electronic protection circuitry, this model fits demanding home users who require reliable long-duration backup power.
The Features of 5.5kW 48V on/off-grid solar inverter

BMS
Support Lithium/Lead-acid Battery
Parallel
9 Inverter in Parallel
Solar
Built-in 80A Solar Charger
Activation
Lithium Battery Activation
Grid
Feed-in to Grid
Generator
Workable with Generator
MPPT
Wide MPPT Range 120-500V
Monitoring
WiFi Monitoring

BMS
Support Lithium/Lead-acid Battery
Parallel
9 Inverter in Parallel
Solar
Built-in 80A Solar Charger
Activation
Lithium Battery Activation
Grid
Feed-in to Grid
Generator
Workable with Generator
MPPT
Wide MPPT Range 120-500V
Monitoring
WiFi Monitoring
The Technical Parameter of 5.5kW 48V on/off-grid solar inverter
| Item | Specification |
|---|---|
| AC Input | |
| Rated Input Voltage (VAC) | 208 / 220 / 230 / 240; L + N + PE |
| Voltage Range (VAC) | 90~280±3 (normal mode); 170~280±3 (UPS mode) |
| Frequency (Hz) | 50 / 60 (Auto Adaptive) |
| AC Output | |
| Rated Capacity (kW) | 5.5 |
| Surge Power (kVA) | 11 |
| Output Voltage (VAC) | 208 / 220 / 230 / 240 |
| Power Factor (PF) | 1 |
| Output Frequency | 50 / 60Hz ±0.1% |
| Switch Time (ms) | 10 (normal mode) / 10 (UPS mode) |
| Wave Form | Pure Sine Wave |
| Overload Protection (Battery Mode) | 60s@102%~110% load; 10s@110%~130% load; 3s@130%~150% load; 0.2s@>150% load |
| Max. Efficiency (Battery Mode) | 93% @ 48VDC |
| Parallel Quantity | N/A |
| Charger (PV / AC) | |
| Solar Charger Type | MPPT |
| Max PV Input Current / Power | 18A / 6000W |
| Operating Voltage Range (VDC) | 120~450 |
| Max PV Open Circuit Voltage (VDC) | 500 |
| Max PV Charge Current (A) | 80 |
| Max AC Charge Current (A) | 80 |
| Max Charge Current (PV + AC) (A) | 80 |
| Battery | |
| Nominal Battery Voltage | 48VDC |
| Floating Charge Voltage (VDC) | 56 |
| Overcharge Protection (VDC) | 60 |
| Battery Type | Lithium and Lead-acid |
| Interface | |
| Display | LCD |
| Communication | RS485 / RS232 / USB / Dry Contact |
| Monitoring | WiFi (Optional) |
| General Data | |
| Ingress Protection | IP21 |
| Operating Temperature | -10°C ~ +50°C |
| Relative Humidity | 5% ~ 95% (Non-condensing) |
| Storage Temperature | -15°C ~ +60°C |
| Net / Gross Weight (kg) | 8.7 / 10 |
| Dimension | |
| Product Size (mm) | 306 × 480 × 115 |
| Package Size (mm) | 386 × 560 × 175 |
| Max Operating Altitude | 4000m (Derating above 1000m) |


5.5kW 48V on/off-grid solar inverter( SINGLE PHASE ON/OFF-GRID SOLAR INVERTER)
- Pure sine wave output, stability for high-power home appliances
- 80A MPPT controller for efficient solar performance
- Supports remote monitoring and battery parameter customization
- Reliable overload and short-circuit protection mechanisms
- Designed for homes with mid-to-high power usage
Why Choose the INV 5500-48 SINGLE PHASE ON/OFF-GRID SOLAR INVERTER?
Best for medium-to-large households with higher appliance loads such as air conditioners, washing machines, induction cooktops, and well pumps. Well-suited for countries with unstable grids (Africa, Southeast Asia, Latin America), providing stable and clean home power backup.
Powerful Performance
With 5.5kW rated capacity and 11kVA surge power, it provides stable energy for homes, offices, and small businesses
High Efficiency
Achieves up to 93% efficiency at 48VDC, ensuring reliable and cost-effective operation
Flexible Solar Charging
Built-in MPPT controller supports up to 6000W PV input with a wide 120–450V range for maximum solar utilization
Battery Compatibility
Works with both lithium and lead-acid batteries, featuring floating charge (56V) and overcharge protection (60V)
Durable Design
Compact structure, IP21 protection, and wide operating temperature range (-10℃ to +50℃) make it reliable in diverse environments
Smart Monitoring & Control
LCD display with RS485/RS232/USB/Dry Contact and optional WiFi for convenient management and remote monitoring
The INV 5500-48 SINGLE PHASE ON/OFF-GRID SOLAR INVERTER is the ideal solution for users seeking a balance of power, efficiency, and smart management for residential and small commercial applications. Contact us today for a quotation or request your free inverter & battery solution