Current Carrying Capacity
| Nominal Diameter | Current Range (kA) | ||||
|---|---|---|---|---|---|
| Inch | mm | UHP | SHP | HP | HD |
| 8 | 200 | - | - | 5.5 - 9 | 5 - 6.9 |
| 10 | 250 | 9.2 - 15.1 | 9 - 14.5 | 8 - 13 | 7 - 10 |
| 12 | 300 | 13 - 22 | 13 - 20 | 13 - 17.4 | 10 - 13 |
| 14 | 350 | 20 - 30 | 19 - 28 | 17 - 24 | 13 - 18 |
| 16 | 400 | 25 - 40 | 24 - 36 | 21 - 32 | 18 - 23 |
| 18 | 450 | 32 - 45 | 29 - 42 | 25 - 40 | 22 - 27 |
| 20 | 500 | 38 - 55 | 32 - 52 | 30 - 48 | 25 - 30 |
| 22 | 550 | 48 - 62 | 42 - 59 | 37 - 57 | 32 - 40 |
| 24 | 600 | 52 - 72 | 46 - 69 | 44 - 67 | 38 - 47 |
| 28 AC | 700 | 62 - 95 | - | - | - |
Important: These data are for guidance only. Maximum current ranges depend heavily on Power-On time, total Operating Power, and furnace regulation. Please consult your MBI representative for a complete evaluation.