1.5KW/3KW Off Grid Solar Inverter

An 1.5KW/3KW Off Grid Solar Inverter is a power device used to convert direct current (DC) power into alternating current (AC) power to meet the power needs of off-grid systems. An off-grid system refers to a system that does not rely on public grid power supply, but generates electricity through independent energy systems (such as solar panels, wind turbines, etc.).

Off-grid inverter control all-in-one machine, supporting mains power and photovoltaic solar energy input; DPS digital control technology, double conversion online design, input PFC technology, input power up to 0.99, high-efficiency inverter topology, higher output efficiency; battery balancing function Optimize battery performance, higher energy storage efficiency; mains/photovoltaic/battery/multi-mode optimal output; support battery cold start; built-in dust filter kit, suitable for harsh environments; support WIFI communication (optional).

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  • Pure Sine wave solar inverter
  • High PV input voltage range 90-430V
  • Built-in 80A MPPT solar charger
  • Battery equalization function to optimize battery performance and extend lifecycle
  • Built-in anti-dust kit for harsh environment
  • Support working without battery



  • Power tools; Electric Saw, Drilling Machine, Grinder, Sand blast Machine, Punching Machine, Weeding Machine, Air Compressor etc.
  • Office Applications; Computer, Printer, LCD Monitor, Scanner etc.
  • Household Appliance Applications; Vacuum Cleaner, Fan, Lamp or LED, Sewing Machine etc.
  • Kitchen Appliance Applications; Microwave, Fridge, Freezer, Coffee maker etc.



Line Mode Specifications VM 1.5K VM3K
Rated Output Power 1500vA /1500w 3000VA / 2400w
input Voltage Waveform Sinusoidal (utility or generator)
Nominal input voltage 230Vac
Low Loss Voltage 170Vac± 7v(UPS)
90Vac±7V (Appliances)
Low Loss Return Voltage 180Vac ±7V(UPS)
High Loss Voltage 280Vac ±7v
High Loss Return voltage 270Vac ±7v
Max AC input voltage 300Vac
Nominal input Frequency 50Hz/60Hz(Auto detection)
Low Loss Frequency 40±1Hz
Low Loss Return Frequency 42±1Hz
High Loss Frequency 65±1Hz
High Loss Return Frequency 63±1Hz
Output Short Circuit Protection Circuit Breaker
Efficiency (Line Mode) >95% (Rated R load, battery full charged )
Transfer Time 10ms typical (UPS); 20ms typical (Appliances)
lnverter Mode Specifications
Output Voltage Waveform Pure Sine wave
Output Voltage Regulation 230Vac± 5%
output Frequency 50Hz
Peak Efficiency 91%
overload Protection 5s@=150% load; 10s@110%-150%load
Surge Capacity 2* rated power for 5 seconds
Nominal DC lnput Voltage 12Vdc 24Vdc
Cold Start Voltage 11.5 Vdc 23 Vdc
Low DC Warning voltage
@load<50% 11 Vdc 22 Vdc
@load >50% 10.5 Vdc 21 Vdc
Low DC Warning Return Voltage
@load <50% 11.5 Vdc 22.5 Vdc
@load >50% 11 Vdc 22 Vdc
Low DC Cut off voltage
@load<50% 10.2 Vdc 20.5 Vdc
@load >50% 9.6 Vdc 20 Vdc
High DC Recovery Voltage Frequency 14 Vdc 32 Vdc
High DC Cut off Voltage 16 Vdc 33 Vdc
No Load Power Consumption <25W <30W
Charging Mode Specifications
Charging Algorithm 3-Step
Ac Charging Current(Max) 60Amp 60Amp
Bulk Charging Voltage Flooded Battery 14.6 29.2
14.1 28.2
Floating Charging voltage AGMI Gel Battery 13.5Vdc 27Vdc
MPPT Solar Charging Mode
Max PV Array Power 2000W 3000W
Nominal Pv Voltage 240Vdc
Pv Array MPPT Voltage Range 90-430Vdc
Max PV Array Open Circuit Voltage 450Vdc
Max Charging Current(AC charger plus solar charger) 80Amp 80Amp
Maximum Solar Charging Current 80Amp 80Amp
Safety Certification CE
Operating Temperature Range -10°C~50°C
Storage Temperature -15°C~60″c
Humidity 5% to 95%Relative Humidity(Non-condensing)
Dimension (D*W*H),mm 348×270X95
Net weight, kg 4 5

Wiring method