Delivery Time:3-7 working days for sample, about 10-20 working days for bulk
Certification:CE, ROHS

MPPT 300W Pure Sine Wave Micro Grid Tie Inverter for solar home system

System Function :

directly connected to the solar panels (do not need to connect the battery)

Using precise MPPT function, APL functions, the inverter automatically adjust the solar panels of maximum output power,simply connect the solar panel to the grid inverters. Do not need to connect the battery.

AC 0 angle with high precision auto-detection

AC phase angle of 0 through isolation amplifier then input to the MCU for high-precision detection and analysis. The phase shift rate is less than 1%, thus achieve high-precision with phase modulation AC output together.

Synchronous High-frequency Modulation

In the process of the grid, usually adapt the same phase angle in parallel. (ie, When the two-phase alternating current total is equal to 0.Use switch to combination the two AC fusion) and the product is rectified AC half-frequency AC to 100Hz first, then the machine use the high frequency current in the circuit and semi-100Hz frequency alternating current generated combination, to achieve high-frequency modulation.

Pure Sine Wave Output

        Use SPWM directly to make pure sine wave output.

Automatic Sensing Function Solar Luminosity

Use the latest luminosity perception operation technology. The different illuminate angle and intensity of the solar panel will produce different current output. Use advanced CPU to operate the different illuminance and the data can be directly displayed on the LCD. Then you can visually see the sense of the strength of the sun unit. Used more convenient.

Power Automatically Locked (APL)

In different current fluctuations, we should use the MPPT function. When the MPPT function adjusted to the maximum power point, the product automatically powers locked in maximum power point, then  made the output power more stable.

Maximum Power Point Tracking (MPPT)

Because the current intensity and the voltage changes at any time, if there is no power point tracking, there will be a lot of problems. In the past time, usually adopt a solar controller, but this product uses high-precision MPPT operation power, automatic and immediate adjust the solar panels output power at the  maximum output point, then achieve a stable output purposes.

Automatically Adapt To Different Load Power Factor

Adapt to any of the power load.

Constant Current, Constant Power

This product is constant current, constant output power, without any overload, over-current phenomenon.

Automatically Shut Down When The Power Output Of a Fault

       When the city power system is in failure, the inverter will automatically turn off the output.

         Current Limit Protection

         Current limit

Stack Multiple Machines

       Multiple small power inverters in parallel can achieve large output power.

High-Frequency High Conversion Rate

Adapt high frequency converter, the output more efficient.

SGI-series models	300W	500W	800W	1000W
Recommend use solar panels	420Wp	620Wp	1050Wp	1250Wp
DC Maximum Input Power	400W	600W	900W	1200W
DC maximum voltage	VpvDC30.2VDC
DC voltage range	Vpv 10.5V~28VDC
Maximum output power factor	99%
Maximum input current	20A	30A	45A	65A
AC output power	300W	500W	800W	1000W
AC maximum output power	300W	500W	800W	1000W
Anti-voltage protection	Fuse
AC standard voltage range	90~160VAC/190~262VAC
AC frequency range	55Hz~63Hz/ 45Hz-53Hz
THDI	<5%
Phase	<1%
Islanding protection	VAC;f AC
Output short circuit protection	Current-limiting
Show	LED
Installation	Wall hanging
Cooling	Fan
Standby Power	<2W
Night Power	<1W
Ambient temperature