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Current carrying capacity

Europe

The values indicated in the tables are appoximate values, the information is strongly simplified.

Use standard EN 60204 part 1 (IEC 204-1) for standardized installation of industrial machines.

Values for 40°C surrounding temperature, PVC insulation, copper wires, multi-wire cable, unmoved operation

Cross section (mm²)  Installation type E
(open cable bridge)
Current (A)
  Installation type B2
(1 power cable in a cable duct)
Current (A)
  Installation type B2
(2 power cables in a cable duct)
Current (A)
0,75 10,4 8,5 6,8
1 12,4 10,1 8,08
1,5 16,1 13,1 10,48
2,5 22 17,4 13,92
4 30 23 18,4
6 37 30 24
10 52 40 32
16 70 54 43,2
25 88 70 56

Kollmorgen cables in Europe are PUR insulated, allowed current is identical.

Derating of the allowed current may be given for other installation types and multiple cables installations, (e.g. two similar loaded cables in one cable duct = factor 0.8).

Correction factors in case of deviant surrounding temperature:

Surrounding Temperature (°C) Factor
30 1,15
35 1,08
40 1,00
45 0,91
50 0,82
55 0,71
60 0,58

USA / Canada

Current carrying capacity of AWG cables according to NEC 310-16 see page AWG.