Table 3&4 : Aluminum Ampacity CEC
| AWG or KCMIL | Table 3 (75°C) | Table 4 (75°C) | Table 3 (90°C) | Table 4 (90°C) | 1/2"C (16mm) | 3/4"C (21mm) | 1"C (27mm) | 1.25"C (35mm) | 1.5"C (41mm) | 2"C (53mm) | 2.5"C (63mm) | 3"C (78mm) | 3.5"C (91mm) | 4" (103mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 55 | 40 | 60 | 45 | 2 | 5 | 8 | 14 | 19 | 32 | 46 | 72 | 96 | 124 |
| 6 | 75 | 50 | 85 | 55 | 1 | 3 | 6 | 11 | 14 | 24 | 35 | 54 | 72 | 93 |
| 4 | 100 | 65 | 115 | 75 | 1 | 2 | 4 | 8 | 11 | 18 | 25 | 39 | 53 | 68 |
| 2 | 135 | 90 | 150 | 100 | 1 | 1 | 3 | 5 | 7 | 12 | 18 | 28 | 38 | 49 |
| 1 | 155 | 100 | 175 | 115 | 1 | 1 | 1 | 4 | 5 | 9 | 14 | 21 | 28 | 37 |
| 1/0 | 180 | 120 | 205 | 135 | 1 | 1 | 3 | 4 | 8 | 11 | 18 | 24 | 31 | |
| 2/0 | 210 | 135 | 235 | 150 | 1 | 1 | 3 | 4 | 6 | 9 | 15 | 20 | 26 | |
| 3/0 | 240 | 155 | 270 | 175 | 1 | 1 | 2 | 3 | 5 | 8 | 12 | 17 | 22 | |
| 4/0 | 280 | 180 | 315 | 205 | 1 | 1 | 1 | 2 | 4 | 6 | 10 | 14 | 18 | |
| 250 | 315 | 205 | 355 | 230 | 1 | 1 | 1 | 3 | 5 | 8 | 11 | 14 | ||
| 300 | 350 | 230 | 395 | 260 | 1 | 1 | 1 | 3 | 4 | 7 | 10 | 12 | ||
| 350 | 395 | 250 | 445 | 280 | 1 | 1 | 1 | 2 | 4 | 6 | 8 | 11 | ||
| 400 | 425 | 270 | 480 | 305 | 1 | 1 | 2 | 3 | 5 | 7 | 10 | |||
| 500 | 485 | 310 | 545 | 350 | 1 | 1 | 1 | 3 | 4 | 6 | 8 | |||
| 600 | 545 | 340 | 615 | 385 | 1 | 1 | 1 | 1 | 3 | 5 | 6 | |||
| 750 | 620 | 385 | 700 | 435 | 1 | 1 | 1 | 3 | 4 | 5 | ||||
| 1000 | 950 | 520 | 1070 | 585 | 1 | 1 | 1 | 3 | 4 |
Disclaimer: Consultation with a Professional Advised
The information provided here is for general informational purposes only and should not be considered as professional advice. It is essential to consult with a qualified professional or specialist before making any decisions based on the information provided. Individual circumstances and requirements vary, and a professional can provide personalized advice tailored to your specific situation. Reliance on any information provided herein is solely at your own risk.
Notes:
Conduit fill calculated based on conductor sizes per Canadian Electrical Code Part 1 – Rule 12-1014;
- Table 3 : Allowable Ampacities for Single Aluminum Conductors in free air (Based on ambient temperature of 30°C)
- Table 4: Allowable ampacities for not more than 3 Aluminum conductors in raceway or cable (Based on ambient temperatures of 30°C)