SMA America’s recently released Sunny Tripower TL-US series includes four models with rated ac outputs of 12 kW, 15 kW, 20 kW and 24 kW. The non-isolated inverters are listed to UL 1741 for 1,000 Vdc or 600 Vdc applications and feature two independent MPP trackers. The products are wall mountable and designed for direct connection to 3-phase 480/277 Vac services. Safety features include all-pole ground-fault protection and integrated AFCI. Each MPPT channel can be independently monitored to provide low-cost monitoring with four-string granularity. The Tripower’s NEMA 3R enclosure is rated for installation from vertical to 15° from horizontal. An optional Connection Unit combines array source circuits and provides a load-break–rated dc disconnection means and a reverse polarity indicator.