Maintenance - ABB SACE Emax 2 Series Operating Instructions Manual

2 - Maintenance

Safety standards Comply with the following mandatory recommendations during maintenance work.
Skilled personnel The maintenance operations must be carried out by Skilled Personnel:
Circuit-breaker life The circuit-breakers SACE Emax 2, with or without opening or closing coils, can withstand the following
266 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
HAZARD! RISK OF ELECTRIC SHOCK! Risk of electric shock or accident.
WARNING! before proceeding with any maintenance operation, it is mandatory to:
• Set the circuit-breaker to the open position and make sure that the springs of the
operating mechanism are discharged.
• In the case of a withdrawable circuit-breaker, extract the circuit-breaker from the fixed
part (see the indication DISCONNECTED)
• If work must be performed on fixed circuit-breakers or on fixed parts, disconnect the
power supply to the power circuit and auxiliary circuits and visibly ground the terminals
on both the supply side and load side.
• Use adequate personal protection equipment, ensure that the apparatus is in a safe
condition and proceed in accordance with the Laws in force.
skilled person, in the electrical field (IEV 195-04-01): person with sufficient training and experience to
enable him or her to perceive risks and avoid the dangers potentially created by electricity).
ABB declines all liability for damage to persons or property caused by failure to comply with the
instructions in this document.
operating cycles if regularly serviced. For further information see chapter 3 - Environmental conditions
on page 7.
Inter-
Mechanical life
rupted
with regular main-
circuit-
rated
tenance
breaker
current
IEC
No. of
60947
Iu (40°C)
operations
[A]
(x 1000)
</= 1000 20
1250 20
E1.2
1600 20
1250L 20
< 1250 25
1600 25
E2.2
2000 25
2500 20
< 2500 20
2500 20
E4.2
3200 20
4000 15
4000 12
E6.2 5000 12
6300 12
Only for 900V and 1150V circuit-breakers Operating sequences/hour = 10.
(1)
Electrical life
440 V 690 V 900 V
Frequency of
operations/ No. of operations (x 1000)
hour
60 8 8
60 8 6,5
60 8 6,5
60 3 1
60 15 15
60 12 10
60 10 8
60 8 7
60 10 10
60 8 8
60 7 7
60 5 4
60 4 4
60 3 2
60 2 2
ABB | SACE Emax 2
1150 V /
1000 V
1200 V
- - -
- - -
- - -
- - -
2 0,5 -
2 0,5 -
2 0,5 -
2 0,5 -
0,5 1 1
0,5 1 1
0,5 1 1
0,5 1 1
1 - -
1 - -
1 - -
Continued on the next page
Putting into service and maintenance
2 - Maintenance
Frequency
of
operations/
hour
30
30
30
30
30
30
30
30
20 (1)
20 (1)
20 (1)
20
(1)
10
10
10