Siemens 3AH3 Instruction Manual page 15

Figure 5: Stored-energy operating mechanism (circuit breaker shown in OPEN position) (straight linkage shown)
55.2
62.1
62.2
50.2
55.1
62.0
50.4.1
55.0
58.0
59.0
60.0
Item Description
50.2 Charging mechanism gear box
50.3 Charging flange
50.3.1 Driver (not visible)
50.4 Spring charging motor 88.0
50.4.1 Limit switches
50.5 Manual spring-charging port
53.0 Close pushbutton
53.1 Close coil 52SRC
54.0 Open pushbutton
54.1 Trip coil 52T
55.0 Closing spring-charge indicator
55.1 Linkage
55.2 Control lever
58.0 CLOSED/OPEN indicator
59.0 Operations counter
60.0 Operator housing
61.8 Shock absorber
62.0 Closing spring
62.5
62.3
50.3
50.5 62.6
50.4
64.0
63.5
61.8
Item
62.1
62.2
62.3
62.5
62.5.1
62.5.2
62.6
62.8
62.8.1
62.8.3
63.0
63.1
63.5
63.7
64.0
68.0
68.1
62.5.2
53.0
53.1
54.1
54.0
63.0
Description
Charging shaft
Crank
Cam disc
Lever
Pawl roller (not visible)
Close latch pawl
Driver lever
Straight coupling rod
Spring return latch (not shown)
Trip-free coupling lever
Jack shaft
Lever phase C
Lever phase B
Lever phase A
Opening spring
Auxiliary switch
Auxiliary switch link
68.0
68.1
63.1
Footnote:
For certain applications, the
1.
straight trip coupling rod (62.8) is
replaced by a collapsible trip-free
coupling system, illustrated in
Figures 6-10.
1
1
1
15