Page 143 - Sace Emax 2 Catalogue
P. 143
INSTALL ATION 7/9
Current-limiting curves The current-limiting circuit breakers are distin-
The SACE Emax 2 series features a series of cur- guished by short-time withstand currents Icw
rent-limiting circuit breakers in sizes E1.2 up to that are not particularly high and therefore not in-
1600A. These circuit breakers are distinguished dicated for applications in which chronoampero-
constructively by: metric selectivity is required with several down-
• Dedicated stored energy operating mechanism, stream devices or in which devices are present
which reduces opening times. with high inrush current in the start-up stage.
• Specific main contacts that, utilizing the elec-
trodynamic forces generated by the short-cir-
cuit current, accelerate opening of the main
contacts.
These features ensure rapid interruption which
consequently reduces electromechanical and
thermal stress on the system during a short-cir-
cuit.
07
