SMA America’s new SB 3000TL-US, SB 4000TL-US and SB 5000TL-US inverters feature a non-isolated topology, dual MPPT inputs and an integrated dc arc-fault circuit interrupter (AFCI) that meets NEC 2011 Section 690.11 arc-fault requirements. The 3 kW, 4 kW and 5 kW products have a 175–480 Vdc MPPT range and a CEC-weighted efficiency of 96.5% at 240 Vac, and interconnect at 208 or 240 Vac. The inverters’ extended operating temperature range (-40°F to +140°F) allow for installation in nearly all climates. The products also include a first-of-its-kind Secure Power Supply function: When coupled with SMA’s Emergency Power Module, the inverters provide up to 1,500 Wac at 120 Vac during grid failures to charge or power devices such as laptops and cell phones (provided there is sufficient solar irradiation). In addition to the standard SMA inverter monitoring and control features, the new models can utilize a ZigBee wireless connection to communicate with home energy management systems.

http://solarprofessional.com/articles/products-equipment/product-launches/sma-introduces-non-isolated-inverters-for-the