AWG
Ampacity
(A)
1/0
195
2/0
225
3/0
260
4/0
300
Notes:
1. Ampacity is based on 30 °C ambient temperature with conductor rated at 60 °C. For ambient temperature other
than 30 °C, multiply the above ampacities by the following constants:
Temperature (°C)
Constant
21 - 25
1.08
26 - 30
1.00
31 - 35
0.91
36 - 40
0.82
41 - 45
0.71
46- 50
0.58
51 - 55
0.41
2. Resistance is nominal at 75 °C wire temperature.
36
1
2
Resistance
(Ω/m)
0.00040
0.00032
0.00025
0.00020
Keysight EL30000 Series User's Guide