ABB | SACE Emax 2
Management operations
4 - Environmental conditions
30 | © 2023 ABB | 1SDH001000R0002 - ECN000297030
>690V version IEC circuit-
breakers
>690V disconnectors and circuit-breakers are available in the following configurations:
Circuit-breaker
Voltage
Version
E2.2/E9/E10
800/900/1000 V
F-W
E4.2/E9/E10/E12
800/900/1000/1150/1200 V
F-W
E6.2/E9
800/900 V
F-W
Insulating protections are mandatory for >690 V fixed versions of E2.2, E4.2 and E6.2.
Details about assembling insulating protections are available at http://www.abb.com/abblibrary/
DownloadCenter/, especially in the kit sheet
.
Grounding
The circuit-breakers in fixed version and the fixed part of withdrawable circuit-breakers are equipped with
a screw for the ground connection.
The connection must be implemented by means of a conductor of suitable cross-section according to the
IEC 61439-1 Standard.
Clean and degrease the area around the screw before making the connection.
After assembly of the conductor, tighten the screw with a torque of 2 N m - 17.7 lb in.
Alternatively, no connection will be required if circuit-breaker frame continuity with the switchgear
earthing is provided by the metal contact (support) between the circuit-breaker and the metal structure
of the switchgear (or a part of the protection circuit) (as long as there are no insulating panels between
the circuit-breaker and the metal frame of the switchgear).
Figure 74 - Fixed version
Figure 75 - Withdrawable
