US 12,474,407 B2
Tester for a frequency-dependent ground fault interrupt wiring device
Joshua P. Haines, Marcellus, NY (US); and Michael F. McMahon, North Syracuse, NY (US)
Assigned to Pass & Seymour, Inc., Syracuse, NY (US)
Filed by Pass & Seymour, Inc., Syracuse, NY (US)
Filed on May 6, 2024, as Appl. No. 18/656,119.
Application 18/656,119 is a continuation of application No. 17/188,037, filed on Mar. 1, 2021, granted, now 11,977,118.
Claims priority of provisional application 62/982,394, filed on Feb. 27, 2020.
Prior Publication US 2024/0426911 A1, Dec. 26, 2024
Int. Cl. G01R 31/327 (2006.01); H02H 3/05 (2006.01); H02H 3/16 (2006.01)
CPC G01R 31/3277 (2013.01) [H02H 3/05 (2013.01); H02H 3/16 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A tester for a ground fault interrupt wiring device, comprising:
a housing;
a plurality of plug blades extending from the housing, the plurality of plug blades being dimensioned and arranged to engage with a receptacle of the ground fault interrupt wiring device, wherein the plurality of plug blades includes a first plug blade that is positioned to engage with a hot terminal of the receptacle and a second plug blade that is either positioned to engage with a neutral terminal of the receptacle or is positioned to engage with an earth ground terminal of the receptacle;
a tester circuit disposed within the housing, wherein the tester circuit comprises a switch electrically connected between the first plug blade and the second plug blade, wherein the tester circuit is configured to modulate a leakage current along a leakage path between the first plug blade and the second plug blade by adjusting a drive signal provided to the switch.