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Priority claimed from US10/032,064external-prioritypatent/US6697238B2/en
Application filed by Hubbell IncfiledCriticalHubbell Inc
Publication of MXPA02001114ApublicationCriticalpatent/MXPA02001114A/en
A GFCI is provided that has secondary test switch contacts. In case closing of the primary test switch contacts fails to trip the GFCI, subseque nt closing of the secondary test switch contacts results in a short circuit between the AC input terminals of the GFCI. The short circuit blows a fuse disposed on the line side of the GFCI. The blowing of the fuse disables the GFCI and/or provides an indicatio n to the user that the GFCI is defective.
MXPA02001114A2001-02-022002-01-31Ground fault circuit interrupter (gfci) with a secondary test switch contact protection.
MXPA02001114A
(en)