Table 1&2 : Copper Ampacity CEC

AWG or KCMIL	Table 1 (75°C)	Table 2 (75°C)	Table 1 (90°C)	Table 2 (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)
14	30	20	35	25	9	16	25	45	61	101	144	200	200	200
12	35	25	40	30	7	12	20	35	48	79	113	175	200	200
10	50	35	55	40	5	9	15	27	37	61	87	134	179	200
8	70	50	80	55	2	4	7	13	18	30	43	67	90	116
6	95	65	105	75	1	3	4	10	13	23	32	50	67	87
4	125	85	140	95	1	2	4	7	10	16	23	36	49	63
3	145	100	165	115	1	1	3	6	8	14	20	31	41	53
2	170	115	190	130	1	1	3	5	7	11	17	26	35	45
1	195	130	220	145	1	1	1	3	5	8	12	19	25	33
1/0	230	150	260	170		1	1	3	4	7	10	16	22	28
2/0	265	175	300	195		1	1	2	3	6	8	13	18	23
3/0	310	200	350	225		1	1	1	3	5	7	11	15	19
4/0	360	230	405	260			1	1	2	4	6	9	12	16
250	405	255	455	290			1	1	1	3	5	7	10	13
300	445	285	500	320			1	1	1	3	4	6	8	11
350	505	310	570	350				1	1	2	3	5	7	10
400	545	335	615	380				1	1	1	3	5	7	9
500	620	380	700	430				1	1	1	2	4	5	7
600	690	420	780	475					1	1	1	3	4	6
750	785	475	885	535					1	1	1	2	3	4
1000	935	545	1055	615						1	1	1	3	3

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 1 : Allowable Ampacities for Single Copper Conductors in free air (Based on ambient temperature of 30°C)
Table 2: Allowable ampacities for not more than 3 copper conductors in raceway or cable (Based on ambient temperatures of 30°C)