Use this calculator to find the approximate diameter of a wire bundle. The wire bundle diameter is used to select the proper accessory cable entry size. Add .025 inches to the diameter if the bundle has an overall braid shield, plus 2X the jacket thickness. If the bundle diameter almost exceeds the maximum allowable diameter for an entry size, then it is a good idea to move up to the next larger entry size. Undersize bundles can be enlarged with bushings or silicone tape to fit the cable clamp.
Wire Bundle Diameter Multiplication Factors
| Wires | Mult. Factor | Wires | Mult. Factor | Wires | Mult. Factor | Wires | Mult. Factor |
|---|---|---|---|---|---|---|---|
| 1 | 1.0 | 10 | 4.0 | 36 | 7.4 | 80 | 10.9 |
| 2 | 2.0 | 12 | 4.3 | 40 | 7.7 | 90 | 11.6 |
| 3 | 2.2 | 14 | 4.6 | 45 | 8.1 | 100 | 12.2 |
| 4 | 2.4 | 16 | 5.0 | 50 | 8.5 | 125 | 13.7 |
| 5 | 2.7 | 18 | 5.3 | 55 | 8.9 | 150 | 15.0 |
| 6 | 2.9 | 20 | 5.6 | 60 | 9.3 | 175 | 16.1 |
| 7 | 3.0 | 24 | 6.0 | 65 | 9.7 | 200 | 17.2 |
| 8 | 3.3 | 28 | 6.5 | 70 | 10.1 | 250 | 19.3 |
| 9 | 3.8 | 32 | 6.9 | 75 | 10.5 | 300 | 21.0 |