Inverters
Micro Solar Inverter
ONYX/Optimum Solar 300 watt grid-tied micro photovoltaic inverter model OSI-300 is designed for superior installation, functionality and field maintenance. The unit’s maximum efficiency is 95.0%, MPPT accuracy of 94% and has IP65 IP protection. The unit’s maximum input DC voltage is 50 volts and maximum input current is 10 amps. Output is rated at 285 watts at 1.22 amps AC. The unit can service up to 10 parallel units per string. Working frequencies are 49 HZ – 51 HZ and 59.3 Hz – 60.5 Hz. ONYX/Optimum Solar is proud to offer a 20 year warranty on each inverter unit we sell.





