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Title:
SWITCH FOR WITHSTAND VOLTAGE TEST AND EARTH LEAKAGE BREAKER
Document Type and Number:
Japanese Patent JP2007115572
Kind Code:
A
Abstract:

To provide a compact switch for a withstand voltage test of an earth leakage breaker additionally installable in a limited space in a breaker body case without changing the layout of main components.

This manual operation type switch 11 for a withstand voltage test which is structured to disconnect an earth leakage detection circuit from a main circuit in executing an insulation/withstand voltage test of an earth leakage breaker is formed with an assembly comprising: a switch case 13 made of an insulating material; a fixed electrode holder 15 with two pieces of fixed electrodes 14 held thereto; a bridging type moving contact 16 formed of a reversed V-shaped spring piece; a moving contact holder 17 collectively holding moving contacts of respective poles and vertically slidably housing them in a body case; and an operation part 17a extracted upward from the switch case by continuing it to the contact holder. A knob arranged at a tip of the operation part is faced to a window hole opened in a cover of the breaker body case, and the switch for a withstand voltage test is turned on/off by manual pushing/pulling operations from the outside of the case.


Inventors:
ASANO HISANOBU
ASAKAWA KOJI
TAKAHASHI YASUHIRO
Application Number:
JP2005306974A
Publication Date:
May 10, 2007
Filing Date:
October 21, 2005
Export Citation:
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Assignee:
FUJI ELEC FA COMPONENTS & SYS
International Classes:
H01H73/00; H01H83/02
Domestic Patent References:
JP2005026105A2005-01-27
JPH10199366A1998-07-31
JPH07161280A1995-06-23
Attorney, Agent or Firm:
Hiroshi Yamamoto