Solar Inverter TG-OFG Series 8.2kW–11.2kW Off-Grid Solar Inverter with MPPT

Advanced energy storage product engineered for reliable power applications, scalable supply, and global B2B project requirements.

Model:: Solar Inverter TG-OFG Series 8.2kW–11.2kW
Brand:: VoltCrave

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Off-Grid Home Solar

Convert rooftop PV and battery energy into AC power for selected household circuits. Programmable operating modes help coordinate solar, battery, and utility input; backup coverage depends on the final system design.

Remote Cabin Power

Support a cabin or remote home with solar charging and battery storage where grid access is limited or unavailable. Size the PV array and battery for the exact inverter model and daily load profile.

Farm & Irrigation Workshop

Use PV charging and battery storage for selected farm loads, workshop equipment, or irrigation controls. Check motor starting current and total connected loads against the inverter model before installation.

Small Business Backup

Combine solar generation, battery storage, and selectable utility or backup operating modes for a small rural office or service space. Wi-Fi monitoring helps keep system status visible; confirm ratings and site design before deployment.

PARAMETER	TG-OFG-8K2	TG-OFG-11K2
BASIC SPECIFICATIONS
Product Series	TG-OFG Series
Product Type	Off-Grid Solar Energy Storage Inverter
Rated Power	8200VA / 8200W	11200VA / 11200W
AC INPUT SPECIFICATIONS
Nominal Input Voltage	230VAC
Input Voltage Range (UPS Mode)	170–280VAC
Input Voltage Range (Appliance Mode)	90–280VAC
Input Frequency	50/60Hz (Auto Sensing)
AC OUTPUT SPECIFICATIONS
Nominal Output Voltage	230VAC (Settable)
Rated Output Power	8200W	11200W
Surge Power	16400VA	22400VA
Output Frequency	50/60Hz
Output Waveform	Pure Sine Wave
Peak Efficiency (PV to Inverter)	96%
Peak Efficiency (Battery to Inverter)	93%
Transfer Time (UPS Mode)	10ms
Transfer Time (Appliance Mode)	20ms
Overload Protection	60s @ 105%–110% Load 10s @ 110%–140% Load 5s @ ≥140% Load
BATTERY SPECIFICATIONS
Nominal Battery Voltage	48VDC
Floating Charge Voltage	54VDC
Overcharge Protection Voltage	63VDC
SOLAR & AC CHARGING
Solar Charger Type	Maximum Power Point Tracking (MPPT)
Maximum PV Array Power	11000W (5500W × 2)	13000W (6500W × 2)
Maximum PV Open-Circuit Voltage	500VDC
MPPT Operating Voltage Range	60–450VDC
Maximum PV Input Current	27A × 2
Maximum Solar Charging Current	140A	160A
Maximum AC Charging Current	120A	140A
Maximum Combined Charging Current (PV + AC)	140A	160A
PHYSICAL SPECIFICATIONS
Product Dimensions (D × W × H)	540 × 410 × 122mm	540 × 410 × 122mm
Packing Dimensions (D × W × H)	615 × 485 × 215mm	615 × 485 × 215mm
Net Weight	14.5kg	15.5kg
COMMUNICATION & CONTROL
Communication Interfaces	RS232 / RS485 (BMS) / Bluetooth / Wi-Fi / Dry Contact
Lithium Battery Activation	Supported via PV or Utility Power
Parallel Operation	Supported
Maximum Parallel Units (Technical Table)	6 Units
Wireless Monitoring	Wi-Fi / Bluetooth
OTA Updates	Supported via Mobile App
OPERATING ENVIRONMENT
Operating Temperature Range	-10°C to 50°C
Storage Temperature	-15°C to 60°C
Relative Humidity	5%–95% RH (Non-Condensing)