ABB SACE Emax 2 Series Operating Instructions Manual page 273

Disassembly operations for
circuit breakers E2.2, E4.2 and
270 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
To disassemble the parts of the circuit-breaker:
1. Remove the transparent flange (A) of the trip unit, by turning the screws (B).
E6.2
2. Remove the front cover of the circuit-breaker (C), by removing the mounting screws (D).
Figure 148 - Removing the flange and front cover
3. Remove the gearmotor (E) by removing the screw (F) and the connector.
Figure 149 - Removing the gearmotor
4. If there is an undervoltage coil (G), remove it, and discharge the springs of the operating mechanism
for closing and opening the circuit breaker.
Figure 150 - Removing the undervoltage coil
1
C
D
F
E E
G
E
4
1
3
Putting into service and maintenance
3 - E1.2 maintenance and E2.2, E4.2 and E6.2 first level maintenance
ABB | SACE Emax 2
2
2
1
90°
A
B
2
F