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The SUN-250G-US Microinverter delivers increased energy harvest and reduces design and installation complexity with its all-AC approach. With the SUN-250G-US, the DC circuit is isolated and insulated from ground, so no Ground Electrode Conductor (GEC) is required for the microinverter. This further simplifies installation, enhances safety, and saves on labor and materials costs.

The Microinverter maximizes energy production from your photovoltaic (PV) array. Each Microinverter is individually connected to one PV module in your array. This unique configuration means that an individual Maximum Peak Power Point Tracker (MPPT) controls each PV module. This ensures that the maximum power available from each PV module is exported to the utility grid regardless of the performance of the other PV modules in the array. That is, although individual PV modules in the array may be affected by shading, soiling, orientation, or PV module mismatch, the Microinverter ensures top performance for its associated PV module. The result is maximum energy production from your PV system.

Microinverter systems are inherently more reliable than traditional inverters. The distributed nature of a microinverter system ensures that there is no single point of system failure in the PV system. Masspower Microinverters are designed to operate at full power at ambient temperatures as high as 65 C (150 F).

SKU: SUN250G-US/EU Category:


Model SUN-250G-US
 Recommended input power(STC)  250W
Maximum input DC voltage  55V
 Peak power tracking 20V-55V
Min/Max. Start voltage  25V/50V
 Max. Input current 10A
Max. DC short circuit  12A
 Maximum output power  220W
Nominal output current  1000mA
 Nominal voltage/range  208V/183V-228V,240V/221V-264V
Nominal frequency/range 60.0/59.3-60.5
 Extended frequency/range  60.0/59.2-60.5
 Power factor  >0.95
 Maximum units per branch 17
 Total Harmonic Distortion <3%
Peak inverter efficiency 95.00%
 CEC weighted efficiency  94.0%
Nominal MPP tracking  99.6%
Operating temperature range  -40ºC- +65ºC
 Night time power consumption  30mW
 Enclosure environmental rating  Outdoor – NEMA 6
 Warranty 25 years