700 Watt Solar Micro Inverter, Grid-tie Inverter

700 watt grid tie solar inverter, smart micro inverter with wide input and output range, converts 22-50V DC to 80-160V AC/ 180-280V AC, pure sine wave output, MPPT, APL functions providing more reliable.
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Low price solar mini on grid inverter is 700W power capacity, transfers 24 volt or 48 volt DC to 120 volt/ 230 volt AC. Input/ ouput is fully isolated to protect electrial safety and using IP65 waterproof streamingline design to effectively prevent rainwater.


  • 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 433MHz communication mode

Parameter List

Input Parameters ATO-WVC-700
Maximum input power 700W
Recommended using solar panels Power 2x350W, 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 53A
Maximum input current 36A
Automatic shift AC voltage and output Automatic shift local grid voltage
Output Parameters @120V AC @230V AC
Peak output power 700 watt 700 watt
Rated output power 700W 700W
Rated output current 6.7A 3.5A
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 5PCS (single-phase) 10PCS (single-phase)
Output Efficiency @120V AC @230V AC
Static MPPT efficiency 99.5% 99.5%
Maximum output efficiency 97% 97%
Night time power consumption <1W <1W
THD <5% <5%
Operating temperature range -40℃ to +65℃
Dimensions (WxHxD) 283mm×200mm×41.6mm
N.W 1.63kg
Waterproof level IP65
Topology With transformer type
Cooling Self-cooling
Communication Mode 433MHz communication mode (*Note: You need to buy another WiFi data collector)
Power transmission mode Reverse transfer, load priority
Monitoring System Mobile APP, computer browser
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: Maximum power point (MPP) of solar inverter

Solar cell can work in a wide range of voltages and currents. By the resistive load on the battery from zero (short circuit) continues increase to high value (open circuit) to determine MPP. MPP is operation point of the maximum value of V x I (voltage multiply current), and reach maximum power in the sun light intensity. The output power is zero in short-circuit (PV voltage equal to zero) or open circuit (PV current is equal to zero).

High quality single crystal silicon solar cells can generate 0.6 volts open circuit voltage in the temperature 25 °C. In full light and air temperature is 25 °C, the temperature of solar cell may be close to 45 °C, which makes the open circuit voltage drops to about 0.55V. With the increases of temperature, the open circuit voltage continuous declines until the PV module short circuit.

The maximum power of the solar cell in temperature of 45 °C usually is usually produced under the conditions of 80% open circuit voltage and 90% short circuit current. The solar cell short-circuit current is almost proportional to the intensity of illumination, while the open circuit voltage may only drop 10% when the illuminate intensity decreases 80%. Lower quality solar cells' voltage will drop faster in the case of the current increase, thereby decrease the output power from 70% to 50 % or even 25%.

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