Derating Due To Temperature - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Derating due to temperature In certain installations, the circuit-breakers could end up operating at a temperature above the reference
291 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
temperature (40 °C). In such cases the rated capacity of the circuit-breaker may be reduced. To find out the
percentage of reduction to be applied to the capacity consult the following table:
Emax 2 E1.2 Temperature [°C]
< 40 45
E1.2 250 100% 100%
E1.2 630 100% 100%
E1.2 800 100% 100%
E1.2 1000 100% 100%
E1.2 1250 100% 100%
E1.2 1600 100% 100%
Emax 2 E2.2 Temperature [°C]
< 40 45
E2.2 250 100% 100%
E2.2 630 100% 100%
E2.2 800 100% 100%
E2.2 1000 100% 100%
E2.2 1250 100% 100%
E2.2 1600 100% 100%
E2.2 2000 100% 100%
E2.2 2500 100% 100%
Emax 2 E4.2 Temperature [°C]
< 40 45
E4.2 2000 100% 100%
E4.2 2500 100% 100%
E4.2 3200 100% 100%
E4.2 4000 100% 100%
Emax 2 E6.2 Temperature [°C]
< 40 45
E6.2 4000 100% 100%
E6.2 5000 100% 100%
E6.2 6300 100% 100%
50 55 60
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 98% 95%
50 55 60
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 100%
100% 100% 95%
100% 100% 98%
50 55 60
100% 100% 100%
100% 100% 100%
97% 93% 89%
94% 90% 86%
50 55 60
100% 100% 100%
100% 100% 100%
95% 91% 87%
Mechanical accessories | 8 - Technical characteristics
ABB | SACE Emax 2
65 70
100% 100%
100% 100%
100% 100%
100% 100%
100% 100%
93% 90%
65 70
100% 100%
100% 100%
100% 100%
100% 100%
100% 100%
100% 98%
91% 87%
94% 90%
65 70
100% 100%
100% 100%
86% 82%
83% 80%
65 70
100% 100%
98% 95%
84% 81%