Wire sizing
FIRE HAZARD
Select a wire size large enough to carry short-circuit current without overheating (refer to the following table).
To satisfy safety requirements, load wires must be heavy enough not to overheat while carrying the short-cir-
cuit output current of the unit.
AWG
Ampacity
1
(A)
Resistance
2
(Ω/m)
14
25
0.0103
12
30
0.0065
10
40
0.0041
8
60
0.0025
6
80
0.0016
4
105
0.0010
2
140
0.00064
1/0
195
0.00040
2/0
225
0.00032
3/0
260
0.00025
4/0
300
0.00020
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.
Keysight E36150 Series User's Guide
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