DC cable sizing calculator

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					                            DC Cable Sizing Calculator

The size of DC cabling you use with your solar panel array or wind turbine system is very
important. If cable of too thin a diameter is used, this can lead to heating of the wire. At best,
this can seriously impact efficiency through wasted energy and at worst, it can cause a fire
and other damage to your system.

Our DC cable sizing tool will help ensure you select the right cable for your application.
Please choose the voltage of your system, the number of amps and the length of cable

Cable size recommendations (mm2)
          Select the voltage of your system:
                                                  Number of Amps:             A
             12 Volt DC
                                                 Length of cable required:            m
             24 Volt DC
             48 Volt DC
          System voltage                         48 V
          Amps entered:                          5A
          Length entered:                        25 m
                The cable cross-section should be at least 2.2875 mm2.*
Maximum Fuse Size Recommendation
                                 Cable    Max Fuse /
                                 Size    Breaker Size
                                      6mm         25amps
                                     16mm         70amps
                                     25mm         90amps
                                     32mm        110amps
                                     50mm        150amps

* Information above is based on your inputs and is a a guide as to the size cabling required.
You can select from a large range of cabling here, or consult an expert for
more detailed information. We also offer cable and wire size conversion charts below.
Wiring/cabling size conversion charts

It's amazing how crucial correct wire sizing is in a wind turbine or solar power system! If
your cable is too thin, it can severely impact the performance and even be a safety issue!

          Buy discount cable and wiring online or try our DC cable sizing calculator!

Using wire that is of insufficient diameter between your solar panels and solar regulator can
cause excess heat generation. This is not only wasted electricity (also known as line loss),
but is a fire hazard. Undersized cable used between the deep cycle battery and your
appliances can cause symptoms such as lights dimming and unexpected equipment

It's incredibly important not to skimp on your wiring in your solar energy system. If you buy
undersized or poor quality wiring, you'll likely be replacing it very soon; so cheap wire can
actually cost you more in the long run.

Calculating wiring size

If you're not sure what wire size you need, try our DC cable sizing calculator - based on your
input of how many amps will be running over what distance, the calculator will provide you
with a guide in mm2, which is a cross-sectional measurement and the sizing we use for
cabling available in our online store. Note that this is a very different measurement to
standard millimetre diameter. If you need to convert from that standard to another standard
such as AWG, inch or millimetre diameter, you can use the conversion chart below.

Wire size conversion

                MM2             MM diameter      AWG             Inch Diameter
                4.17            2.30             11              0.0907
                5.26            2.59             10              0.1019
                6.63            2.91             9               0.1144
                8.36            3.26             8               0.1285
                10.55           3.67             7               0.1443
                13.29           4.11             6               0.162
                16.76           4.62             5               0.1819
                21.14           5.19             4               0.2043
                26.65           5.83             3               0.2294
                33.61           6.54             2               0.2576
                42.39           7.35             1               0.2893
                53.46           8.25             0               0.3249
                67.40           9.27             00              0.3648
                84.97           10.40            000             0.4096
                107.16          11.68            0000            0.46 offers a full range of quality cabling, multicontact cable and accessories
at discount prices!

If you need further assistance in determining your wiring needs, please don't hesitate in
contacting our friendly team.
                           Additional notes about your application:

                                           Thank you

Thank you very much for taking the time to fill in this quotation form, it will help to process
your quote in an efficient and personalised manner.
Now that you have completed this form please attach any available photographs, site plans,
etc you feel will help us process your quotation. Where applicable please mark your
proposed position of the turbine(s) and solar system(s).

 Please save and return the completed form and other documentation either by email or post.
If the relevant information has been provided we should be able to provide a quotation within
one week of receipt of the completed form. We may need to contact you to confirm any
details you have been unable to provide and perhaps arrange a site visit, in which case it
could take a little longer. We look forward to working with you in the future.

                      Need help designing your system? Contact Us!


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