Page 166 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Altitude The circuit breaker maintains its rated operating characteristics up to 2000 m above sea level.
Once this altitude is passed, you need to consider reduction of dielectric strength and reduced cooling
capacity of the air.
The following are the corrections expressed as a percentage to be applied to the parameters according to
altitude:
2000 m / 3000 m / 4000 m / 5000 m /
Altitude
6600 ft 9900 ft 13200 ft 16500 ft
Rated service voltage (V) Ue 100% 88% 78% 68%
Rated current (A) at 40°C 100% 98% 93% 90%

Electromagnetic compatibility The use of specific devices in industrial installations may cause electromagnetic interference in the electrical
system.
The SACE Emax 2 circuit-breakers were developed and tested in an EMC environment in accordance with
IEC 60947-2, Annex J and F.

Storage Environment Store the circuit breaker in a dry, dust-free environment free of harsh chemicals.
The storage ambient temperature must be:
• Circuit-breaker in the original packaging, without protection trip unit or Ekip Dip trip unit, between -40 °
C and +85 ° C, -40 °F e +185 °F.
• Circuit-breaker in the original packaging, with Ekip Touch protection trip unit, between -25°C and + 85°C,
-22°F e +185°F.
NOTE: the storage conditions may differ from the usage conditions.

164 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Mechanical characteristics | 3 - Environmental conditions