• For countries that require UL certification (UL 1741/IEEE 1547) • 96.8% peak efficiency • OptiCool™ active temperature management system • Galvanic isolation • Patented automatic grid voltage detection* • Integrated DC disconnect switch SUNNY BOY 3000-US / 3800-US / 4000-US UL certified, reliable system managers The Sunny Boy 3000-US, 3800-US and 4000-US inverters are specially designed for countries that require UL certification. Automatic grid voltage detection* and an integrated DC disconnect switch simplifies installation, ensuring safety as well as saving time. These models feature galvanic isolation and can be used with all types of modules—crystalline as well as thin-film. The die-cast aluminum enclosure, with the OptiCool active temperature management system, guarantees the highest yields possible and a long service life, even under extreme conditions. The Sunny Boy 3800-US is designed for projects with a current limit of 16A. * US Patent US7352549B1

Input (DC) Max. recommended PV power (@ module STC) Max. DC power (@ cos ϕ = 1) Max. DC voltage DC nominal voltage MPP voltage range Min. DC voltage / start voltage Max. input current / per string (at DC disconnect) Number of MPP trackers / fused strings per MPP tracker Output (AC) AC nominal power Max. AC apparent power Nominal AC voltage / adjustable AC voltage range AC grid frequency; range Max. output current Power factor (cos ϕ) Phase conductors / connection phases Harmonics Eciency Max. eciency CEC eciency Protection devices DC reverse-polarity protection AC short circuit protection Galvanically...