Abstract: Contact pad designed to be fixed on a movable contact of a low-voltage circuit breaker designed to withstand peak short-circuit currents comprised between 200 and 600 amperes per square millimeter of pad. The pad is made of a silver- or copper-based conducting material alloy, a fraction of refractory particles such as tungsten carbide, tungsten or titanium nitride and a fraction of carbon fibers. The weight percentage of carbon fibers in the pad is strictly less than 2% of the total weight of the pad.
Type:
Grant
Filed:
November 1, 2005
Date of Patent:
October 6, 2009
Assignee:
Schneider Elecric Industries SAS
Inventors:
Marc Rival, Guy Gastaldin, Jean Paul Favre Tissot, Franck Pizot