SECTION 7: CONNECTORS, APPLICATIONS & PROTECTION FEATURES
Entire Contents Copyright
2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
42L Series Modular DC Load Operation Manual
Page 67 of 88
7.2.1
Wire Size Guidelines
The following table provides a guide to the current carrying capability (ampacity) of Metric
and AWG wire sizes. Metric sizes are expressed as a cross sectional area (CSA) in square
millimeters. If in doubt regarding the rating of a cable or wire, consult your cable supplier.
Ampacity
AWG Size
CSA (mm
2
)
Notes
5.0
22
-
Ampacity of aluminum wire is approx. 80% of copper rating
8.33
20
-
10
-
0.75
When two or more wires are bundled together, ampacity
For each wire must be reduced to the following %:
15.4
18
-
13.5
-
1
16
-
2 conductors
94%
16
-
1.5
3 conductors
89%
31.2
14
-
4 conductors
83%
25
-
2.5
5 conductors
76%
40
12
-
32
-
4
Maximum temperatures:
55
10
-
Ambient:
50°C /122°F
40
-
6
Conductor:
105°C / 221°F
75
8
-
63
-
10
100
6
-
135
4
-
Table 7-1: Load Wire Size Table
Notes:
AWG ratings are based on MIL-W-5088B, Metric size ratings are based on IEC Publications.
