L6555
Emax
19/74
Doc. No
Model
Apparatus
Scale
Page No
1SDH000460R0002
8. Maintenance
8.1. Warning
WARNING: Before carrying out any maintenance task, you must:
- Open the circuit-breaker and check that the operating mechanism springs are unloaded;
- In the case of withdrawable circuit-breakers, work with the circuit-breaker racked-out (DISCONNECTED) of
the fi xed part;
- For action on fi xed version circuit-breakers or on fi xed parts disconnect the power circuit and the auxiliary
circuits and visibly earth the terminals both on the power supply side and on the load side;
- Make safe in compliance with current laws.
WARNING ELECTRICAL SHOCK HAZARD: Shock Hazard or Injury.
ABB declines all responsibility for damage to things and injury to people due to failure to comply with the instructions contained
in this document. Maintenance tasks must be performed by qualifi ed staff who are thoroughly familiar with the equipment.
8.2. Maintenance programme
8.2.1. Switch life
With regular maintenance, SACE Emax circuit-breakers, either with or without opening or closing releases, can withstand the
following operation without replacement of parts.
(1)
Rated uninterrupted
current
Mechanical life
(2)
Electrical life
(2)
Iu (40 °C)
[A]
No. of
operations
x 1000
Frequency
operations/hour
440 V ~
No. of operations
x 1000
690 V ~
No. of operations
x 1000
Free
operations/hour
E1 B-N
800 25 60 10 10 30
1000-1250 25 60 10 8 30
1600 25 60 10 8 30
E2 B-N-S
800 25 60 15 15 30
1000-1250 25 60 15 15 30
1600 25 60 12 10 30
2000 25 60 10 8 30
E2 L
1250 20 60 4 3 20
1600 20 60 3 2 20
E3 N-S-H-V
800 20 60 12 12 20
1000-1250 20 60 12 12 20
1600 20 60 10 10 20
2000 20 60 9 9 20
2500 20 60 8 7 20
3200 20 60 6 5 20
E3 L
2000 15 60 2 1,5 20
2500 15 60 1,8 1,3 20
E4 S-H-V
3200 15 60 7 7 10
4000 15 60 5 4 10
E6 H-V
3200 12 60 5 5 10
4000 12 60 4 4 10
5000 12 60 3 2 10
6300 12 60 2 1,5 10
Emax LTT - Low temperature version
E1 B-N
800-1600 8 60 8 8 30
E2 B-N-S
800-1600 8 60 8 8 30
E2 L
1250-1600 8 60 3 2 20
E3 N-S-H-V
800-2000 8 60 8 8 20
E3 N-S-H-V
2500 8 60 8 7 20
E3 N-S-H-V
3200 8 60 6 5 20
E3 L
2000-2500 8 60 1,6 1,3 20
(1) Data referring to standard installation conforming to product standards. For other applications, consult ABB Sace.
(2) Extreme atmospheric conditions, polluted atmosphere or vibrations may shorten the application’s life. Consult ABB Sace.
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