Document Type and Number:
Japanese Patent JPS559774
Kind Code:
B2
Abstract:
An electric power circuit breaker is disclosed wherein the latching mechanism as well as other parts which affect the motion of the contacts are returned by restoring forces to their initial position after the breaker is opened. The restoring forces are made ready in dependence on the position of the switching shaft of the breaker and are smaller in the closed position of the switching shaft than in the open position thereof. The invention is suited particularly for low-voltage power circuit breakers for high rated currents wherein the economic configuration of the required springs is of importance.
More Like This:
Application Number:
JP4461473A
Publication Date:
March 12, 1980
Filing Date:
April 19, 1973
Export Citation:
International Classes:
H01H3/30; H01H3/38; H01H33/28; H01H33/40; H01H33/42; H01H33/65