300 Watt Solar Micro Inverter, Grid-tie Inverter

Cheap and best DC to AC grid tie solar inverter with 300 watt rated output power, 24V/ 48V DC to 120V/ 230V AC smart micro inverter (wireless) for 300W 36V solar PV panel, built-in high-performance maximum power point tracking (MPPT) function, effectively capture and collect sunlight.
Free shipping
Delivery date: 6-20 days
PRICE BREAKS - The more you buy, the more you save
Quantity 5+ 10+ 50+
Discount 3% OFF 4% OFF 5% OFF
Products specifications

300W MPPT solar grid tie inverter, micro inverter for sale, IP65 waterproof class, effectively prevent rainwater from eroding the surface. It adopts reverse efficient power transmission technology. Extra electricity is transmitted to the grid. Efficient use of the inverter to the power emitted. The AC output can be automatically switched to 120V or 230V according to the local grid voltage.


  • High performance maximum power point tracking (MPPT)
  • Reverse power transmission
  • Intelligent monitoring management
  • Input/output is fully isolated to protect the electrical safety
  • Multiple parallel stacking
  • Digital control system
  • Simplify maintenance (user serviceable)
  • Operation and maintenance costs low
  • Flexible installation
  • Use the wireless 433MHz communication mode

Parameter List

Input Parameters ATO-WVC-300 (Wireless)-120VAC/230VAC
Maximum input power 320 watt
Recommended using solar panels Power 300W, open circuit voltage 36-50VOC
Solar panel open circuit voltage range 36-50VOC
Peak power tracking voltage 24V/48V DC, range: 22-50V DC
Min/Max start voltage 22-50V DC
Maximum DC short current 20A
Maximum input current 12A
Automatic shift AC voltage and output Automatic shift local grid voltage
Output Parameters @120V AC @230V AC
Peak output power 320 watt 320 watt
Rated output power 300W 300W
Rated output current 2.5A 1.3A
Rated voltage range 80-160V AC 180-280V AC
Rated frequency range 48-51Hz/58-61Hz 48-51Hz/58-61Hz
Power factor >99% >99%
Maximum units per branch circuit 6PCS (single-phase) 12PCS (single-phase)
Output Efficiency @120V AC @230V AC
Static MPPT efficiency 99.5% 99.5%
Maximum output efficiency 95% 95%
Night time power consumption <1W <1W
THD <5% <5%
Operating temperature range -40℃ to +60℃
Dimensions (WxHxD) 192mm×176mm×38mm
N.W 0.9kg
Waterproof level IP65
Topology With transformer type
Cooling Self-cooling
Communication Mode Wireless 433MHz (*Note: You need to buy another WiFi data collector)
Power transmission mode Reverse transfer, load priority
Monitoring System Lifetime free
Electromagnetic compatibility EN50081.part1 EN50082.part1
Grid disturbance EN61000-3-2 Safety EN62109
Grid detection DIN VDE 1026
Certificate CEC, CE National patent technology
Warranty period 12 months

Tips: Why is the starting voltage of the grid tie inverter higher than the minimum voltage?

In photovoltaic grid-tied inverters, there is a strange parameter, that is, the input starting voltage of the inverters, which is about 30V higher than the minimum operating voltage. For example, single-phase inverters, MPPT operating voltage is 70V to 550V, starting voltage is 100V. Many people wonder whether the grid tie inverters work or not from 70V to 100V. If it is working, but the inverters need 100V to start.

In fact, the reason why the starting voltage is higher than the minimum working voltage is based on the characteristics of photovoltaic modules. Before the solar inverter starts, the components do not work and are in the open circuit state. The voltage will be relatively high. When the inverter starts, the components are in the working state and the voltage will be reduced.

If three components are connected in series, when the sun shines in the morning, the open-circuit voltage may be 90V. If it starts at this time, it may only be 60V. If it does not reach the working voltage, the inverters will stop. Only when the open-circuit voltage exceeds 100V, if it starts at this time, the working voltage will exceed 70V, the inverters will work all the time.

After the solar inverters start up, it does not mean that the inverter will have power output immediately. The control part of the inverters, CPU, screen and other devices work first. First, the inverters are self-checked, then the components and power grid are detected. After no problem, the output of the inverters will only be achieved when the photovoltaic power exceeds the standby power of the inverters.


300 Watt Solar Micro Inverter, Grid-tie Inverter reviews
  • Only registered users can write reviews
Max file in upload: 3