ABB | SACE Emax 2
Mechanical accessories | 6 - Environmental conditions283 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
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:
Altitude
2000 m /
6600 ft
3000 m /
9900 ft
4000 m /
13200 ft
5000 m /
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.
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