arc-fault circuit interrupter

noun

A type of circuit breaker that detects signs of potentially-dangerous arcing on downstream wiring and shuts off power to the affected branch circuit to reduce the risk of a fire.

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AFCI
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Meanings

nounarc-fault circuit interrupter (plural arc-fault circuit interrupters)

plural arc-fault circuit interrupters

  1. businessA type of circuit breaker that detects signs of potentially-dangerous arcing on downstream wiring and shuts off power to the affected branch circuit to reduce the risk of a fire.

    Synonyms: AFCI

Synonyms & antonyms

nounA type of circuit breaker that detects signs of potentially-dangerous arcing on downstream wiring and shuts off power to the affected branch circuit to reduce the risk of a fire.

Similar
AFCI
Cite this entry
APA

arc-fault circuit interrupter. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/arc-fault%20circuit%20interrupter

MLA

“arc-fault circuit interrupter.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arc-fault%20circuit%20interrupter. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “arc-fault circuit interrupter,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/arc-fault%20circuit%20interrupter.

Source: arc-fault circuit interrupter on Wiktionary, CC BY-SA 4.0.