Flexi -3G Installation & Commissioning Manual
Chapter 7. Installation of DC Cables
Document No: - 4493-CM-EN-10989402
Page 65 of 94
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7.1.3.B.ii. Temperature de-rating for Merlin Gerin MCBs
Merlin Gerin IEC Rated C60H
Ambient
Temp
0
˚
C 10
˚
C 20
˚
C 30
˚
C 40
˚
C
De-rating
Factor
1.05 1.00 0.92 0.86 0.78
Merlin Gerin UL Rated C60N
Ambient
Temp
0
˚
C 10
˚
C 20
˚
C 30
˚
C 40
˚
C 50
˚
C
De-rating
Factor
1.02 0.97 0.90 0.83 0.76
0.64
Merlin Gerin IEC Rated NC100
Ambient
Temp
0
˚
C 10
˚
C 20
˚
C 30
˚
C 40
˚
C
De-rating
Factor
1.06 1.00 1.00 0.90 0.82
50˚C ambient is the maximum limit for cabinets using Merlin Gerin MCBs
7.1.3.C. Cable
The maximum temperature rating for load and battery cables is 80˚C.
