Electrician Journeyman Knowledge QuizShare:FacebookPinterestTwitterMailWhat safety device protects electrical circuits from overcurrent by melting a metal wire?27%Next Correct Incorrect Fuses are one-time use devices that melt to open a circuit when current exceeds a safe level. What safety device protects electrical circuits from overcurrent by melting a metal wire? Circuit Breaker Relay Fuse Contactor 27%
