Table of Contents
Advertisement
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.
Rated uninterrupted
current
Iu (40 °C)
[A]
E1 B-N
800
1000-1250
1600
E2 B-N-S
800
1000-1250
1600
2000
E2 L
1250
1600
E3 N-S-H-V
800
1000-1250
1600
2000
2500
3200
E3 L
2000
2500
E4 S-H-V
3200
4000
E6 H-V
3200
4000
5000
6300
Emax LTT - Low temperature version
E1 B-N
800-1600
E2 B-N-S
800-1600
E2 L
1250-1600
E3 N-S-H-V
800-2000
E3 N-S-H-V
2500
E3 N-S-H-V
3200
E3 L
2000-2500
(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.
Model
L6555
(1)
Mechanical life
(2)
No. of
Frequency
operations
operations/hour
x 1000
25
60
25
60
25
60
25
60
25
60
25
60
25
60
20
60
20
60
20
60
20
60
20
60
20
60
20
60
20
60
15
60
15
60
15
60
15
60
12
60
12
60
12
60
12
60
8
60
8
60
8
60
8
60
8
60
8
60
8
60
Electrical life
440 V ~
690 V ~
No. of operations
No. of operations
x 1000
10
10
10
15
15
12
10
4
3
12
12
10
9
8
6
2
1,8
7
5
5
4
3
2
8
8
3
8
8
6
1,6
Apparatus
Doc. No
1SDH000460R0002
(2)
Free
operations/hour
x 1000
10
30
8
30
8
30
15
30
15
30
10
30
8
30
3
20
2
20
12
20
12
20
10
20
9
20
7
20
5
20
1,5
20
1,3
20
7
10
4
10
5
10
4
10
2
10
1,5
10
8
30
8
30
2
20
8
20
7
20
5
20
1,3
20
Emax
Scale
Page No
19/74
Hide quick links:
Advertisement
Table of Contents
