Siemens 3AH - Charging, Closing, and Tripping Sequences; Trip Free Operation

Figure 6a. Stored Energy Operating Mechanism (Circuit Breaker Shown in Open Position)
50.2 Charging mechanism gear box
50.3 Charging flange
50.3.1 Driver
50.4 Spring charging motor 88
50.4.1 Limit switches
50.5 Manual spring charging port
53 Close pushbutton
53.1 Close coil 52SRC
54 Open pushbutton
54.1 Trip coil 52T
55 Closing spring charge indicator
55.1 Linkage
55.2 Control lever
58 Close-open indicator
59 Operation counter
60 Operator housing
61.8 Shock absorber
62 Closing spring
62.1 Charging shaft
62.2 Crank
62.3 Cam disc
62.5 Lever
62.5.1 Pawl roller
62.5.2 Close latch pawl
62.6 Drive lever
62.8 Trip free coupling rod
62.8.1 Spring return latch
62.8.3 Trip free coupling lever
63 Jack shaft
63.1 Lever - phase C
63.5 Lever - phase B
63.7 Lever - phase A
64 Opening spring
68 Auxiliary switch
68.1 Auxiliary switch link
60
61.8
64
63.5
62.8
63
68
53.1
68.1
54.1
54
55.2
50.5
50.2
50.3
50.3.1
62.6
62.3
62.5.2
62.5
53
62.5.1
55.1
62
62.2
50.4.1
55
62.8.1
59
58
9
62.1
63.7
63.1
50.4
62.8.3
Vacuum Interrupter/Operator Description