Installation Reference
Conductor Sizing
Wire Gauge |
75° COPPER |
75° ALUMINUM |
14 |
20 |
--- |
12 |
25 |
20 |
10 |
35 |
30 |
8 |
50 |
40 |
6 |
65 |
50 |
4 |
85 |
65 |
3 |
100 |
75 |
2 |
115 |
90 |
1 |
130 |
100 |
1/0 |
150 |
120 |
2/0 |
175 |
135 |
3/0 |
200 |
155 |
4/0 |
230 |
180 |
250 |
255 |
205 |
300 |
285 |
230 |
350 |
310 |
250 |
500 |
380 |
310 |
600 |
420 |
340 |
750 |
475 |
385 |
1000 |
545 |
445 |
ECG Sizing
Max Rating or Setting of OCPD |
Copper |
Aluminum |
15 |
14 |
12 |
20 |
12 |
10 |
60 |
10 |
8 |
100 |
8 |
6 |
200 |
6 |
4 |
300 |
4 |
2 |
400 |
3 |
1 |
