View all text of Subpart G [§ 75.600 - § 75.607]
§ 75.601-3 - Short circuit protection; dual element fuses; current ratings; maximum values.
Dual element fuses having adequate current-interrupting capacity shall meet the requirements for short circuit protection of trailing cables as provided in § 75.601, however, the current ratings of such devices shall not exceed the maximum values specified in this section:
| Conductor size (AWG or MGM) | Single conductor cable | Two conductor cable | Ampacity | Max. fuse rating | Ampacity | Max. fuse rating | 14 | 15 | 15 | 12 | 20 | 20 | 10 | 25 | 25 | 8 | 60 | 60 | 50 | 50 | 6 | 85 | 90 | 65 | 70 | 4 | 110 | 110 | 90 | 90 | 3 | 130 | 150 | 105 | 110 | 2 | 150 | 150 | 120 | 125 | 1 | 170 | 175 | 140 | 150 | 1/0 | 200 | 200 | 170 | 175 | 2/0 | 235 | 250 | 195 | 200 | 3/0 | 275 | 300 | 225 | 225 | 4/0 | 315 | 350 | 260 | 300 | 250 | 350 | 350 | 285 | 300 | 300 | 395 | 400 | 310 | 350 | 350 | 445 | 450 | 335 | 350 | 400 | 480 | 500 | 360 | 400 | 450 | 515 | 600 | 385 | 400 | 500 | 545 | 600 | 415 | 450 |
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