EARTH LEAKAGE CIRCUIT BREAKER WITH FUNCTION FOR DETECTING REVERSE LEAKAGE CURRENT

摘要

An earth leakage circuit breaker (ELCB) with a function of detecting a leakage current which backflows while cutting off an electric leakage is disclosed. The ELCB includes: a breaker portion for detecting an occurrence of an electric leakage to cut off electrical power; and a leakage current detecting portion electrically connected in parallel with the breaker portion between an input terminal and an output terminal of the breaker portion and detecting a leakage current which backflows from the output terminal after electrical power is cut off by the breaker portion.