APPENDIX C: REFERENCE TABLES & GRAPHS
Trace Engineering Co. Inc. Tel (360) 435-8826 Part Number 3179
5916 195
th
Street, NE Fax (360) 435-2229 Effective August 6, 1998
Arlington, WA 98223 USA www.traceengineering.com
Page
70
English to Metric Wire Conversion Chart
AWG DIAMETER/mm AREA/mm² DC Resistance / 1000ft
14
1.628 2.082 3.14
12
2.052 3.308 1.98
10
2.588 5.261 1.24
8
3.264 8.367 0.778
6
4.115 13.299 0.491
4
5.189 21.147 0.308
2
6.543 33.624 0.194
1
7.348 42.406 0.154
0 (1/0)
8.525 53.482 0.122
00 (2/0)
9.266 67.433 0.0967
000 (3/0)
10.404 85.014 0.0766
0000 (4/0)
11.684 107.219 0.0608
Minimum Recommended Battery Cable Size (In free air)
Inverter
Typical DC
Minimum
1 to 3 feet
3 to 5 ft
5 to 10 ft
L2012 200 Amps 250A 00 00 0000
L2512 250 Amps 300A 00 0000 0000
L3012 300 Amps 400A 0000 0000 0000
"Free air" is defined by the NEC as cabling that is not enclosed in conduit or a raceway. Cables
enclosed in raceways or conduits have substantially lower continuous current carrying ability due to
heating factors.