Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LEAKAGE BREAKER WITH POOR CONNECTION CUT-OFF FUNCTION
Document Type and Number:
Japanese Patent JP2014072178
Kind Code:
A
Abstract:

To provide a leakage breaker which allows a user to easily understand whether the cause of trip is leakage or loosening of terminal screws.

At terminals 3, 4, poor connection due to loosening of terminal screws 5 is detected. A first electromagnetic device for opening a main contact when a leakage current flows, and a second electromagnetic device for opening a main contact when poor connection of the terminals 3, 4 is detected are provided in a breaker case 2. A leakage display member 12 displaying the trip state by the first electromagnetic device, and a poor connection display member 14 displaying the trip state by the second electromagnetic device are provided on both sides of a handle 11. The second electromagnetic device includes an electromagnet for driving a contact trip member, and a linkage member for moving the poor connection display member 14 from a non-display position to a display position by using the power of the electromagnet. The linkage member is coupled with the handle 11, and the poor connection display member 14 is moved from a display position to a non-display position by means of the handle 11 via the linkage member.


Inventors:
YAMATO TAKASHI
Application Number:
JP2012220270A
Publication Date:
April 21, 2014
Filing Date:
October 02, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
H01H83/02; H01H73/02
Domestic Patent References:
JP2002231118A2002-08-16
JP2008305764A2008-12-18
JP2006092770A2006-04-06
Attorney, Agent or Firm:
Mizuno Yuuki