Circuit-Breaker Life; Maintenance Schedule - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

Circuit-breaker life Emax 2 circuit-breakers, with or without opening or closing coils, can withstand the following operating
cycles if regularly serviced
E1.2
E1.2-A
(1)
Maintenance schedule Proper maintenance of the equipment allows good electromechanical operation to be maintained over time.
The maintenance plan for SACE Emax 2 circuit-breakers specifies the maintenance frequency for the different
types of site conditions.
We include the table indicating the frequency with which maintenance should be carried out and the relative
routine maintenance operations required.
Frequency
(1)
Compliance with the following rules is also recommended:
99 | © 2014 ABB | 1SDH000999R0002 - L8569
.
(1)
Interrup-
ted rated
circuit-
current
breaker IEC
60947
Iu (40°C) [A]
< 1250
1600
2000
2500
Interrup-
ted rated
circuit-
current
breaker UL
1066
Iu (40°C) [A]
< 800
1200
See chapter 5 - Environmental conditions on page 21 .
Maintenance in standard envi-
ronments
One year or 2000 operations or after trip-
ping on short circuit
See chapter 5 - Environmental conditions on page 21 .
• Even circuit-breakers that are operated infrequently or that remain closed or open for long periods of time
must be subjected to programmed maintenance.
• All the circuit-breakers provide information on the number of operations performed in the presence of
auxiliary power supply of the Trip Unit. With Ekip Dip releases, the information can be obtained with the
aid of Ekip T&P and a PC on which the Ekip Connect software is installed. With Ekip Touch releases, the
information is available at any time on the appropriate display. With Ekip Dip releases, installation of the
mechanical operation counter is recommended (supplied on request).
• During the service, visually inspect the circuit-breaker from the outside to check for the presence of dust,
dirt or damage.
Mechanical life with
regular maintenance
Frequency of
No. opera-
Operations/
tions (x 1000)
hour
25 60
25 60
25 60
20 60
Mechanical life with
regular maintenance
Frequency of
No. opera-
Operations/
tions (x 1000)
hour
20 60
20 60
(1)
ABB | SACE Emax 2
Electrical life
440V AC 690V AC
No. opera- No. opera-
tions (x 1000) tions (x 1000)
15 15
12 10
10 8
8 7
Electrical life
635V AC 508V AC
No. opera- No. opera-
tions (x 1000) tions (x 1000)
6.5 7
8 8
Maintenance in dusty environments
(dust level measured > 1mg/m3)
6 months or 1000 operations or after trip-
ping on short circuit
Putting into service and maintenance | 3 - Maintenance
Frequency of
Operations/
hour
30
30
30
30
Frequency of
Operations/
hour
30
30