ABB | SACE Emax 2
102 | © 2017
ABB |
1SDH000999R0002 - ECN000058721 - Rev. B
Putting into service and maintenance | 4 - Maintenance operations
Disassembly operations
To disassemble the parts of the circuit-breaker:
1. Remove the front cover (A) by removing the mounting screws (B and C).
2. With a four-pole circuit-breaker, remove the lateral shield (d) by removing the fixing screws (E).
3. With circuit-breaker in the withdrawable version, remove the protection (F) and the terminal-cover (G)
by removing the screws (H)
A
D
E
C
B
Figure 74 - Four-pole fixed circuit-breaker
A
F
H
G
C
B
Figure 75 - Three-pole withdrawable circuit-breaker
4. Remove the gearmotor (E) by removing the screw (F).
2
4
I
L
Figure 76 - Removing the gearmotor
5. If there is a undervoltage coil (M), remove it, and discharge the springs of the operating mechanism for
closing and opening the circuit breaker.
M
3
2
1
4
Figure 77 - Removing the undervoltage coil
