Eaton DSII Series Instructions For Installation, Operation And Maintenance page 36

Low voltage power circuit breakers
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Effective July 2010
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
Figure 4-7 Four Basic Positions of Breaker and Linkage (Enlarged View of Trip Shaft)
36
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a. Breaker Open Springs
Discharged
d. Breaker Closed Springs
Charged
b. Breaker Open - Spring Charged (Spring Charged Position
Corresponding to this Closing Cam Position Shown in Fig. 4-2).
Instructional Book IB694C694-03
Trip Latch Held
e. Trip Shaft Latch Details
c. Breaker Closed Springs
Discharged
Trip Latch Released

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