ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

ABB | SACE Emax 2
Putting into service and maintenance | 4 - Maintenance operations
101 | © 2014 ABB | 1SDH000999R0002 - L8569
Disassembly operations
To disassemble the parts of the circuit-breaker:
1. Remove the escutcheon plate (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 minimum voltage 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

ABB SACE Emax 2 Specifications

General

Type	Air circuit breaker
Rated Current	800 A to 6300 A
Breaking Capacity	Up to 150 kA at 415 V AC
Frequency	50/60 Hz
Number of Poles	3, 4
Installation	Fixed or withdrawable
Standards	IEC 60947-2
Trip Unit	Ekip Touch, Ekip Hi-Touch
Communication	Modbus, Profibus, Ethernet