a. Breaker Open Springs
Discharged
c. Breaker Closed Springs
Discharged
d. Breaker Closed Springs
Charged
Stop Roller
Close Cam
Roller Constraining Link
Pivot Pin
Trip Latch
Trip Shaft Latching Surface
Trip Shaft
Pole Shaft
Center Pole Lever
Pole Lever Pin
Moving Contact Arm
Stationary Arcing Contact
Moving Contact Pivot Pin
Main Drive Link
Main Roller
Spring Release Latch
Insulating link Adjusting
Stud and Lockout
Insulating Link
Mechanism Side Frame
Hardened Latch Surfaces
b. Breaker Open - Spring Charged (Spring Charged Position
Corresponding to this Closing Cam Position Shown in Fig. 4-2).
Trip Latch Held
Trip Latch Released
e. Trip Shaft Latch Details
Figure 4-7 Four Basic Positions of Breaker and Linkage (Enlarged View of Trip Shaft)
Effective July 2010
Instructional Book
IB694C694-03
36
eaton corporation
www.eaton.com
