Specially designed for countries that require UL listing, these Sunny Boy inverters guarantee a safe installation process thanks to the automatic grid voltage detection¹. The integrated DC circuit breaker simplifies the installation process and saves installation costs. Since the devices are suitable for PV array grounding, they can be combined with all module types. In addition, OptiCool guarantees the highest yields possible and a long electrical endurance, even under extreme conditions. The Sunny Boy 3800-US is designed for projects with a current limit of 16 A.