Current Carrying Capacity (amperes) 30C

 

Nominal Cross Sectional Areamm2 Current Rating Amps
0.5 7
0.75 12
1.0 15
1.5 18
2.5 26
4.0 34
6.0 44
10.0 61
16.0 82
25.0 108
35.0 135
50.0 168
70.0 207
95.0 250
120.0 292

 Converstion Factors

Multi conductor cables with cross sectional area up to10.0mm

Number of Cores Conversion Factor
5 0.75
7 0.65
10 0.55
14 0.50
19 0.45
24 0.40
40 0.35
61 0.30

CONVERSION FACTORS for deviating ambient temperature

 

Permissible operating temperature 40oc 60oc 70oc 80oc 85oc 90oc
Ambient temperature
10oc 1.73 1.29 1.22 1.18 1.17 1.15
15oc 1.58 1.22 1.17 1.14 1.13 1.12
20oc 1.41 1.15 1.12 1.10 1.09 1.08
25oc 1.22 1.08 1.06 1.05 1.04 1.04
30oc 1.00 1.00 1.00 1.00 1.00 1.00
35oc 0.71 0.91 0.94 0.95 0.95 0.96
40oc - 0.82 0.87 0.89 0.90 0.91
45oc - 0.71 0.79 0.84 0.85 0.87
50oc - 0.58 0.71 0.77 - 0.82
55oc - 0.41 0.61 0.71 - 0.76
60oc - - 0.50 0.63 - 0.71
65oc - - 0.35 0.55 - 0.65
70oc - - - 0.45 - 0.58
75oc - - - 0.32 - 0.50
80oc - - - - - 0.41
85oc - - - - - 0.29