Moving Part Construction Characteristics; Fixed Part Construction Characteristics - ABB Emax E1 Installation And Service Instructions Manual

1.4. Moving part construction characteristics

8
9
10
11
1
Selective circuit-breaker
21
20
Fig. 3

1.5. Fixed part construction characteristics

7
1
9
10
Fig. 4
Model L6555
6b
6a
5b
5a
4
3
13
8
10
9
13
17
12
16
15
6
5
4
3
2b
2a
9
10
15
7
2
18
14
8
Apparatus
Doc. No
8
6a
5a
4
3
11
1
Current-limiting circuit-breaker
1 Supporting structure made of steel sheet
2 Current sensor for protection release
3 Terminal supporting insulating box
4 Horizontal rear terminals
5a Main fi xed contact plates
5b Fixed arcing contact plates
6a Main moving contact plates
6b Moving arcing contact plates
7 Arcing chamber
8 Terminal box for the fi xed version-Sliding
contacts for the withdrawable version
9 Protection release
10 Circuit-breaker closing and opening
mechanism
11 Closing springs
12 Spring loading geared motor (on request)
13 Lever for manually loading the closing
springs
19
14 Racking-out device (only for withdrawable
circuit-breakers)
15 Service releases (shunt closing release, shunt
opening release, undervoltage release)(on
request)
16 Support for releases
17 Operation counter
18 Earthing
19 Auxiliary contacts
20 Key lock and padlocks in the open position –
extracted test – extracted
21 Key lock in the open position
1 Steel sheet supporting structure
2 Earthing contacts (a: for all versions; b:
for E4, E6)
3 Safety shutters (IP20 degree of
protection)
4 Insulating terminal support base
5 Terminals
6 Contacts for signalling connected/test
isolated/disconnected (on request)
7 Sliding contacts
8 Padlock for safety shutters (on request))
9 Anti-racking-in lock for circuit-breakers of
different size
10 Fixing holes (qty 4 for E1, E2, E3, 6 for
E4, E6)
Emax
1SDH000460R0002
12 13 14
Scale
Page No
5/74