Code:
Gauge   50'     75'     100'     150'     200'

#4      100A
#3      150A
#2      200A    150A    100A
#1      250A+   200A    150A     100A
1/0     350A    250A    200A     125A     100A
2/0     400A+   300A    250A     150A     100A
3/0     500A    400A    300A     200A     150A
4/0     550A+   450A+   350A+    250A     200A