Fronius 4-String Rapid Shutdown Box

The Fronius Rapid Shutdown Box provides the ultimate NEC 2014 code (690.12) compliant solution while enhancing rooftop and firefighter safety. With the Fronius Rapid Shutdown Box, Fronius offers a reliable and easy to install solution for all single phase SnapINverters from 1.5 kW to 15 kW.

Directly connected to the inverter through the same conduit as the DC homeruns, the Fronius solution minimizes the number of components needed providing ease of installation. No additional power supply is needed, reducing overall system cost and streamlining installation. Rapid Shutdown is triggered whenever AC is not present and the inverter rapidly discharges the DC lines, allowing for a seamless code compliant solution to the 2014 NEC requirement for rapid shutdown functionality for PV systems on buildings.

The 4-string model has 4 inputs and 2 outputs, combining the 4 strings into 2.