Patent ID: 6882257
Filing Date: 2005-04-19
Classification: H01H,H02H

Abstract:
1. An earth leakage breaker comprising: a contact that turns on/off an electric path by opening and closing operation of a switch mechanism; an overcurrent detector section that opens said contact by releasing said switch mechanism from a closed state upon detecting an overcurrent of said electric path; a zero phase current transformer for detecting a leak of said electric path; and a leakage trip means that opens said contact by releasing said switch mechanism from the closed state when said zero phase current transformer detects a current leakage exceeding a predetermined level; wherein said contact, the overcurrent detector section, and the zero phase current transformer are disposed in order from a power supply side to a load side of said electric path; and said earth leakage breaker further comprising connecting means for connection from a portion between said overcurrent detector section and said zero phase current transformer to a lightning arrestor, wherein the connecting means for connection to the lightning arrester is a lead wire led out from an opening provided on the housing of the earth leakage breaker.