The Sunny Boy 4000-US inverters are specially designed for countries that require UL certification. The automatic grid voltage detection* allows easy and safe installation. The integrated DC switch-disconnector simplifies installation and saves costs. Since the devices are suitable for generator grounding, they can be combined with all types of modules. The die-cast aluminum enclosure, with the OptiCool active cooling system, guarantees the highest yields and a long service life, even under extreme conditions. The Sunny Boy 4000-US is tailor-made for installations requiring a current limit of 16 A
SUNNY BOY 4000-US is the best in their class. Our US series inverters utilize our proven technology and are designed specifically to meet IEEE-1547 requirements.
Compact design makes them ideal for residential use and the integrated lockable DC disconnect makes installation more cost effective. They are field-configurable for positive ground systems making them more versatile than ever. Increased efficiency means better performance and shorter payback periods. Throughout the world, Sunny Boy is the benchmark for PV inverter performance and reliability.
Efficient
97 % peak efficiency
OptiCool active temperature management
Safe
Galvanic isolation
Simple
Patented automatic grid voltage detection*
Integrated DC switch-disconnector
