Patent ID: 6124558
Filing Date: 2000-09-26
Classification: H01H

Abstract:
A rotation activated circuit breaker comprising:a leading auxiliary switch;an actuating element;a breaking element; andan actuator element disposed between the actuating mechanism and the breaking mechanism, the actuator element including:a drive pinion having a first tooth pitch, the drive pinion being rotatably actuatable by the actuating mechanism;a first gear rack having a second tooth pitch, the first gear rack being longitudinally maneuverable in a closing direction and engageable with the drive pinion, the first gear rack being capable of actuating the auxiliary switch;a second gear rack having a third tooth pitch, the second gear rack being longitudinally maneuverable in the closing direction, the second gear rack connected to the first gear rack so as to lag behind the first rack in the closing direction; andan output pinion having a fourth tooth pitch engageable with the second gear rack, the output pinion being connected to a drive shaft for the breaking mechanism;the third and fourth tooth pitches being greater than the first and second tooth pitches so that a respective total angle of rotation of each of the drive pinion and output pinion is equal over a full closing motion of the actuating mechanism.