ABB | SACE Emax 2
Putting into service and maintenance
4 - E2.2, E4.2 and E6.2 second level maintenance
276 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Disassembly operations
To disassemble the parts of the circuit-breaker:
1. Remove the transparent flange (A) of the trip unit, by turning the screws (B).
2. Remove the front cover of the circuit-breaker (C), by removing the mounting screws (D).
2
1
90°
1
2
Figure 155 - Removing the flange and front cover
3. Remove one or both of the side guards (E) (if installed) by removing the front screws (F).
4. Remove the gearmotor (G) by removing the screw (H) and the connector.
E
F
Figure 156 - Removing the flange
G
H
Figure 157 - Removing the gearmotor
5. If there is an undervoltage coil (I), remove it, and discharge the springs of the operating mechanism
for closing and opening the circuit breaker.
I
3
1
E
F
4
2
Figure 158 - Removing the undervoltage coil
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