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Title:
CIRCUIT BREAKER WITH LEAKAGE ALARM
Document Type and Number:
Japanese Patent JP2015041493
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a small and inexpensive configuration of excellent operability and low current consumption, with a function for leaving the electric leakage operation records in the breaker body even after reset operation of leakage alarm output.SOLUTION: A circuit breaker with leakage alarm includes leakage detection means 6 for detecting a leakage current flowing through a main circuit 4 having a switching section 5, a leakage alarm output relay 7 actuated based on a detection signal from the leakage detection means, a leakage alarm display device LED 1 being lighted by actuation of the leakage alarm output relay, a reset switch 9 for resetting the leakage alarm output relay, and a leakage operation record display device LED 2. The leakage operation record display device is lighted by the output from an AND circuit 10 of the reset signal from the reset switch and the actuation signal from the leakage alarm output relay.

Inventors:
NAGAHATA KAZUHIRO
Application Number:
JP2013171806A
Publication Date:
March 02, 2015
Filing Date:
August 22, 2013
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01H83/02
Domestic Patent References:
JPH0620583A1994-01-28
JPH10285788A1998-10-23
JPH03210726A1991-09-13
JP2005149813A2005-06-09
JP2008204630A2008-09-04
Attorney, Agent or Firm:
Takenaka 岑 student
Masuo Oiwa
Keigo Murakami
Kenji Yoshizawa



 
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