Have you ever considered the crucial role that cable diameter plays in our daily lives? In this informative article, a seasoned mechanical engineer sheds light on the importance of selecting the right cable size. Discover how this seemingly small detail can significantly impact the performance, safety, and efficiency of various applications. Get ready to gain valuable insights that will help you make informed decisions when working with cables.
A copper core cable refers to a cable with a conductor made of copper.
| Number of Cores | Single Core | Double Core | Three Core | Four Core | Five Core |
| Nominal Cross Section | Cable Dia. | Cable Dia. | Cable Dia. | Cable Dia. | Cable Dia. |
| 1.5 | 10.2 | 14.9 | 15.4 | 15.1 | 17.5 |
| 2.5 | 10.7 | 15.9 | 16.5 | 17 | 18.8 |
| 4 | 11.6 | 18 | 18.9 | 20.3 | 21.8 |
| 6 | 12.3 | 19.7 | 20.7 | 22.2 | 23.6 |
| 10 | 13.5 | 22.6 | 23.7 | 25.8 | 27.9 |
| 16 | 14.6 | 25.3 | 26.7 | 28.9 | 31.6 |
| 25 | 16.4 | 29.4 | 31.2 | 34.1 | 37.3 |
| 35 | 18.4 | 32.4 | 34.3 | 37.6 | 41.4 |
| 50 | 19.7 | 28.6 | 33.5 | 37.7 | 40.6 |
| 70 | 21.5 | 31.6 | 37.9 | 42.2 | 45.3 |
| 95 | 24.3 | 35.9 | 42.7 | 47.9 | 50.5 |
| 120 | 26.2 | 38.8 | 46.8 | 52.4 | 56.2 |
| 150 | 29 | 42.7 | 52.4 | 57.2 | 61.2 |
| 185 | 31.8 | 47.1 | 57.7 | 63 | 67.5 |
| 240 | 35.3 | 64.7 | |||
| 300 | 40.2 | ||||
| 400 | 44.7, |
| Nominal Cross Section | Cable Diameter |
| （mm） | |
| 3×2.5+1×1.5 | 16.57123 |
| 3×2.5+2×1.5 | 18.09171 |
| 3×4+1×2.5 | 19.73889 |
| 3×4+2×2.5 | 20.62583 |
| 3×6+1×4 | 21.76619 |
| 3×6+2×4 | 22.39972 |
| 3×10+1×6 | 25.06056 |
| 3×10+2×6 | 26.58103 |
| 3×16+1×10 | 28.22822 |
| 3×16+2×10 | 30.25552 |
| 3×25+1×16 | 32.91635 |
| 3×25+2×16 | 34.94365 |
| 3×35+1×16 | 35.70389 |
| 3×35+2×16 | 37.73119 |
| 3×50+1×25 | 36.59083 |
| 3×50+2×25 | 43.17956 |
| 3×70+1×35 | 40.64544 |
| 3×70+2×35 | 47.36087 |
| 3×95+1×50 | 46.47393 |
| 3×95+2×50 | 53.18937 |
| 3×120+1×70 | 50.78195 |
| 3×120+2×70 | 57.49738 |
| 3×150+1×70 | 55.47008 |
| 3×150+2×70 | 62.18552 |
| 3×185+1×95 | 61.67869 |
| 3×185+2×95 | 68.01401 |
| 3×240+1×120 | 68.52084 |
| 3×240+2×120 | 76.37663 |
| 4×2.5+1×1.5 | 18.47183 |
| 4×4+1×2.5 | 21.25937 |
| 4×6+1×4 | 23.28667 |
| 4×10+1×6 | 27.34127 |
| 4×16+1×10 | 30.50893 |
| 4×25+1×16 | 35.19706 |
| 4×35+1×16 | 39.25167 |
| 4×50+1×25 | 45.46028 |
| 4×70+1×35 | 50.40183 |
| 4×95+1×50 | 56.35703 |
| 4×120+1×70 | 61.8054 |
| 4×150+1×70 | 68.52084 |
| 4×185+1×95 | 72.82885 |
| 4×240+1×120 | 81.31818 |
| Conductor Nominal | Cable |
| Cross Section | Calculated Outer Diameter |
| mm2 | (mm) |
| 1*1.5 | 5.79 |
| 1*2.5 | 6.18 |
| 1*4 | 6.66 |
| 1*6 | 7.15 |
| 1*10 | 7.41 |
| 1*16 | 9.52 |
| 1*25 | 11.2 |
| 1*35 | 12.4 |
| 1*50 | 13.9 |
| 1*70 | 16 |
| 1*95 | 18.1 |
| 1*120 | 19.8 |
| 1*150 | 22.1 |
| 1*185 | 23.8 |
| 1*240 | 27.5 |
| 2*1.5 | 9.88 |
| 2*2.5 | 10.6 |
| 2*4 | 11.6 |
| 2*6 | 12.6 |
| 2*10 | 15.1 |
| 2*16 | 17.2 |
| 2*25 | 20.7 |
| 2*35 | 23.1 |
| 2*50 | 19.7 |
| 2*70 | 22.8 |
| 2*95 | 25.6 |
| 2*120 | 29 |
| 2*150 | 31.6 |
| 2*185 | 36.3 |
| 3*1.5 | 9.8 |
| 3*2.5 | 10.7 |
| 3*4 | 11.8 |
| 3*6 | 12.9 |
| 3*10 | 14.6 |
| 3*16 | 16.5 |
| 3*25 | 20.8 |
| 3*35 | 23.2 |
| 3*50 | 26.4 |
| 3*70 | 29.9 |
| 3*95 | 33.3 |
| 3*120 | 37.8 |
| 3*150 | 41.7 |
| 3*185 | 44.6 |
| 3*240 | 50.1 |
| 3*6+2*4 | 16.5 |
| 3*6+1*4 | 14 |
| 3*10+2*6 | 19.5 |
| 3*10+1*6 | 15.9 |
| 3*16+2*10 | 21.9 |
| 3*16+1*10 | 19.1 |
| 3*25+2*16 | 25.2 |
| 3*25+1*16 | 22.7 |
| 3*35+2*16 | 28.1 |
| 3*35+1*16 | 25.4 |
| 3*50+2*25 | 27.8 |
| 3*50+1*25 | 29 |
| 3*70+2*35 | 31.1 |
| 3*70+1*35 | 32.9 |
| 3*95+2*50 | 33.7 |
| 3*95+1*50 | 37.7 |
| 3*120+2*70 | 36.6 |
| 3*120+1*70 | 41.6 |
| 3*150+2*70 | 42 |
| 3*150+1*70 | 47.6 |
| 3*185+2*95 | 46.2 |
| 3*185+1*95 | 50.6 |
| 3*240+1*120 | 56.4 |
| 4*10+1*6 | 18.8 |
| 4*150*1*70 | 42.2 |
| 4*16+1*10 | 21.9 |
| 4*185+1*95 | 46.3 |
| 4*25+1*16 | 25.4 |
| 4*35+1*16 | 28.7 |
| 4*4 | 12.8 |
| 41*6 | 14 |
| 4*10 | 15.9 |
| 4*16 | 19.1 |
| 4*25 | 22.7 |
| 4*35 | 25.4 |
| 4*50 | 29 |
| 4*70 | 32.9 |
| 4*95 | 37.7 |
| 4*120 | 41.6 |
| 4*150 | 47.6 |
| 4*185 | 50.6 |
| 4*240 | 56.4 |
| 4*50+1*25 | 25.8 |
| 4*70+1*35 | 28.5 |
| 4*95+1*50 | 33.4 |
| 4*120+1*70 | 36.6 |
As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.
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