GW Instek PSU 300-5 - Wire Gauge Considerations

OPERATION
39
Wire Gauge Considerations
Background
Before connecting the output terminals to a load,
the wire gauge of the cables should be considered.
It is essential that the current capacity of the load
cables is adequate. The rating of the cables must
equal or exceed the maximum current rated
output of the instrument.
Recommended
wire gauge
Wire Gauge
Nominal Cross
Section
Maximum Current
20
0.5
9
18
0.75
11
18
1
13
16
1.5
18
14
2.5
24
12
4
34
10
6
45
8
10
64
6
16
88
4
25
120
2
32
145
1
50
190
00
70
240
000
95
290
0000
120
340
The maximum operation current depends on the
maximum allowable temperature of the insulation
on the cable.
Under this condition, above table figures the
maximum current that insulation’s temperature
rise should be under 60 degree and ambient
temperature must be less than 30 degrees.
To minimize noise pickup or radiation, the load
wires and remote sense wires should be twisted-
pairs of the shortest possible length. Shielding of