ABB SACE Emax 2 - Circuit-Breaker Life; Maintenance Schedule

ABB | SACE Emax 2
100 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
Putting into service and maintenance | 3 - Maintenance
Circuit-breaker life
SACE Emax 2 circuit-breakers, with or without opening or closing coils, can withstand the following operating
cycles if regularly serviced
(1)
.
circuit-breaker
IEC 60947
Interrupted
rated
current
Mechanical life with
regular maintenance
Electrical life
440V AC 690V AC
Frequency of
operations/hour
Iu (40°C) [A]
No. of
operations
(x 1000)
Frequency of
operations/
hour
No. of
operations
(x 1000)
No. of
operations
(x 1000)
E1.2
</= 1000 20 60 8 8 30
1250 20 60 8 6.5 30
1600 20 60 8 6.5 30
1250 L 20 60 3 1 30
circuit-breaker
UL 1066
Interrupted
rated
current
Mechanical life with
regular maintenance
Electrical life
508V AC 635V AC
Frequency of
operations/hour
Iu (40°C) [A]
No. of
operations
(x 1000)
Frequency of
operations/
hour
No. of
operations
(x 1000)
No. of
operations
(x 1000)
E1.2-A
</= 800 20 60 8 8 30
1200 20 60 7 6.5 30
(1)
See chapter 5 - Environmental conditions on page 21 .
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.
Maintenance in standard
environments
(1)
Maintenance in dusty environments
(dust level measured > 1mg/m3)
Frequency
One year or 2000 operations or after
tripping due to short circuit
6 months or 1000 operations or after
tripping due to short circuit
(1)
See chapter 5 - Environmental conditions on page 21 .
Compliance with the following rules is also recommended:
• Even circuit-breakers that operate 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 trip units, 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 trip units, the
information is available at any time on the appropriate display. With Ekip Dip trip units, 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.