Electrical & Audio Guides
Fuse and Cable Ratings
Just a simple page to give a brief guide to the current ratings of different
sized cables and how the colours of fuses relate to their protection ratings.
Cable Ratings:
| Size |
Current (amps) |
| 9/0.012 |
5.75 |
| 14/0.010 |
6.00 |
| 36/0.0076 |
8.75 |
| 14/0.012 |
8.75 |
| 28/0.012 |
17.50 |
Metric Cable:
| Size |
Current (amps) |
| 9/0.30 |
5.50 |
| 14/0.25 |
6.00 |
| 14/0.30 |
8.50 |
| 21/0.30 |
12.75 |
| 28/0.30 |
17.00 |
Cross Sectional Area and Gauge quoted Cables:
| CSA (mm²) |
AWG Gauge |
Current (amps) |
| 0.50 |
22 |
11 |
| 0.75 |
20 |
14 |
| 1.00 |
18 |
17 |
| 1.50 |
16 |
21 |
| 3.50 |
14 |
30 |
| 4.00 |
12 |
41 |
| 6.00 |
10 |
53 |
| 10.00 |
8 |
75 |
| 16.00 |
6 |
100 |
| 25.00 |
4 |
136 |
| Colour |
Rating (amps) |
| Black |
1 |
| Grey |
2 |
| Violet |
3 |
| Pink |
4 |
| Tan |
5 |
| Brown |
7.5 |
| Red |
10 |
| Blue |
15 |
| Yellow |
20 |
| Clear |
25 |
| Green |
30 |
| Amber |
40 |
Ceramic Fuses:
| Colour |
Rating (amps) |
| Yellow |
5 |
| White |
8 |
| Red |
16 |
| Blue |
25 |
Glass fuses (cone ended):
| Colour |
Rating (amps) |
| Blue |
3 |
| Yellow |
4.5 |
| Brown |
8 |
| Red / Green |
10 |
| White |
35 |
Glass fuses (flat ended):
| Colour |
Rating (amps) |
| Red / Blue |
2 |
| Red |
5 |
| Blue / Green |
8 |
| Black / Blue |
10 |
| Brown |
15 |
| Blue / Yellow |
20 |
| Pink |
25 |
| White |
35 |
| Yellow |
50 |
Disclaimer:
This information is based on the colours used in the United Kingdom all colours
are correct at time of writing. The webmaster cannot and will not accept any
liability for damage you do to you equipment as a result of following these
guidelines.
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