Control mechanism for a circuit breaker
AssigneeSchneider Electric Industries SAS
InventorsGerard Dolo, Dominique Millot, Frédéric Noirot
Life of this patent
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Abstract
Circuit breaker mechanism comprising a manually controlled part 40a acted upon by a knob 42 and a part 40c with an electromagnetic overcurrent tripping device 41 and a trip spring 65. The parts 40b, 40c act on a common lever 43 through a connecting rod 62 and a control lever 66 respectively. The part 40b is coupled to a lever 64 onto which the spring 65 exerts a torque, and also applies an opening torque to lever 66.
Claims8
Circuit breaker control mechanism comprising a manually controlled part (40b) used to put the switch into the On and off and Reset positions, and a trip part (40c) comprising an electromagnetic tripping device (41), a pivoting latch-in lever (67) and a pivoting control lever with a pawl (66) normally held in position by the latch and acted upon by a trip spring (65), the tripping device pivoting the latch-in lever and detaching the control lever to open the contacts, in response to an overcurrent characterized by the fact that:
- an oscillating lever (64) mounted free to pivot about an axis (O5) is coupled with the manually controlled part (40b),
- the trip spring (65) exerts an opening torque on the control lever (66) through a first bearing point (O7) and a return torque on the oscillating lever (64) through a second bearing point (O6).
Dependencies are inferred from the claim text.