Fronius brings new rapid shutdown boxes to market

By Kathie Zipp Fronius launches a new generation of its Rapid Shutdown Box, offering the most convenient solution for NEC 2014 (690.12) and NEC 2017 (Array Disconnect) compliance, while enhancing overall rooftop and firefighter safety. The new generation includes two versions: the Fronius Rapid Shutdown Box Duo and Quattro.
NEC 2014 requires PV system conductors away from the array to be brought down to a safe level so that firefighters can have assurance that they will not be exposed to potentially lethal voltage during firefighting operations. The National Electrical Code instructs us that the DC “homerun” conductors must be at no more than 30V

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