Circuit-Breaker Dismantling Operations - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User

Circuit-breaker dismantling
operations
55 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
To dismantle the accessories, the following parts must be removed from the circuit-breaker:
• Front cover (A) and protection (F) by removing the screws (B and C).
• For circuit-breakers in four-pole versions, the lateral protection (D) by removing the screws (C and E).
E
Figure 69 - Removing the front cover and protections
After reassembling the accessories, the parts previously disassembled must be reassembled as indicated:
• Front cover (A) and protection (F) by screwing the fixing screws (B and C). Lock with tightening torque 0.8
Nm - 7 lb in (B) and 1.5 Nm - 13 lb in (C).
• For circuit-breakers in four-pole versions, the lateral protection (D) by removing the screws (C and E).
Tighten with tightening torque 1.5 Nm - 13 lb in.
E
Figure 70 - Assembly of front cover and protections
8mm
Max O 3.3mm
0.31"
Max O . 3 0 1 "
2
0.5 2.5mm
20 AWG 14 AWG
8mm
Max O 3.3mm
0.31"
Max O . 3 0 1 "
2
0.5 1.5mm
20 AWG 16 AWG
Figure 71 - Wiring with stripping and cross-sections
A
D
C
A
D
ABB | SACE Emax 2
F
B
F
B
C
2
1
Accessories | 1 - Preliminary considerations