Tuesday, April 26, 2011

PLC Wiring

As the amount of current carried by a wire increases, it is important to use a wire with a larger cross section. A larger cross section results in a lower resistance, and less heating of the wire.


The standard wire gages are listed below: 



AWG #           Dia. (mil)         Res. 25C                  Rated Current
(ohm/1000 ft)           (A)

4                      204                  0.25
6                      162                  0.40
8                      128                  0.64
10                    102                  1.0
12                    81                    1.6
14                    64                    2.6
16                    51                    4.1
18                    40                    6.5
20                    32                    10
22                    25                    17
24                    20                    26