Circuit breaker mechanism

Details Circuit breaker mechanism Circuit breaker mechanism

H - Electricity

01

H

306/283, 306/80

H01H 9/26 (2006.01) H01H 3/00 (2006.01) H01H 71/52 (2006.01) H01H 71/10 (2006.01) H01H 71/34 (2006.01) H01H 71/50 (2006.01)

Patent

CA 1239959

Abstract An actuating mechanism is provided for a circuit breaker. The actuating mechanism includes a frame and a pair of contacts supported relative to the frame. One of the contacts is supported on a contact carrying arm which is displaceable about a contact arm pivot to open and close the contacts. A cradle arm is rotatably connected to the frame and has latched and unlatched positions. A releasable latch holds the cradle arm in its latched position against the bias of an over-center spring. The over-center spring is connected between the contact arm and the cradle arm to bias the contact arm into over-center positions about the contact arm pivot. An actuating link is pivotably mounted on the frame and is coupled with the contact arm so that when the cradle arm is held in the latched position, movement of the link from a first position to a second position displaces the contact arm pivot over center relative to the connections of the over-center spring on the cradle arm and the contact arm, causing the over center spring to move the contact arm to close the contacts. An electrically actuated trip mechanism releases the latch under predetermined conditions to permit displacement of the cradle arm under the bias of the over-center spring from the latched position to an unlatched position. Such movement moves the connection on the cradle arm over center relative to the contact arm pivot, thereby causing the over-center spring to move the contact arm to open the contacts. A cradle arm return spring displaces the cradle arm from the unlatched position back to the latched position and causes the link to rotate from the second position back to the first position as the over-center spring continues to bias the contact arm to hold the contacts open.

484840

Affiliated with

Also associated with

Rating

Circuit breaker mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit breaker mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit breaker mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1256694