Safety & code compliance

Industry Term

AFCI (Arc-Fault Circuit Interrupter)

The 2014 NEC requires that most inverters be equipped with an AFCI, which enables the inverter to shut down for safety reasons if an arc is detected.

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What does AFCI (Arc-Fault Circuit Interrupter) mean?

The 2014 NEC requires that most inverters be equipped with an AFCI, which enables the inverter to shut down for safety reasons if an arc is detected.

Why does AFCI (Arc-Fault Circuit Interrupter) matter in a solar project?

This term matters because PV systems must be safe for installers, owners, service teams, and first responders. Safety terminology may not be flashy, but it is what keeps the flashy parts from becoming sparky parts.

How it relates to Tigo

Tigo systems may include inverters or safety components that participate in the broader safety architecture; AFCI behavior is typically handled at the inverter level.

Tigo Energy, the worldwide leader in Flex MLPE (Module Level Power Electronics), designs innovative solar power conversion and storage products that provide customers more choice and flexibility. The Tigo TS4 platform increases solar production, decreases operating costs, and enhances safety. When combined with the Tigo Energy Intelligence (EI) platform, it delivers module, system, and fleet-level insights to maximize solar performance and minimize operating costs. The Tigo GO Optimized ESS (Energy Storage System), a flexible solar-plus-storage solution for home installations, rounds out the Company’s portfolio of solar energy technology. Tigo was founded in Silicon Valley in 2007 to accelerate the adoption of solar energy, and its global team supports customers whose systems reliably produce gigawatt hours of safe solar energy on seven continents.