Outback Power Systems VFX Series International Installation Manual - Manual (Page 39)

37
WIRE SIZES
The following chart contains information on wire sizes, the DC resistance of the wires and the
corresponding diameters and areas of these wires. This information can be used to calculate the
voltage drop of the wires or to fi nd an equivalent wire size.
SIZE DC CROSS-SECTIONAL AREA APPROXIMATE DIAMETER
(AWG)
Resistance in Ohms
(1000 feet)
INCHES MILLIMETERS INCHES MILLIMETERS
14 3.14 .0032 2.08 .0641 1.63
12 1.98 .0051 3.31 .0808 2.05
10 1.24 .0082 5.26 .1019 2.59
8 0.78 .0130 8.37 .1285 3.26
6 0.50 .0206 13.30 .162 4.11
4 0.31 .0328 21.15 .2043 5.19
2 0.19 .0521 33.62 .2576 6.54
1 0.15 .0657 42.41 .2893 7.35
1/0 0.12 .0829 53.50 .325 8.25
2/0 0.10 .1045 67.43 .365 9.27
3/0 0.08 .1318 85.01 .410 10.4
4/0 0.06 .1662 107.20 .460 11.7
MODEL
AMPACITY DC BREAKER DC FUSE
FX2012ET 200 amps OBB-250-125VDC-PNL 400
FX2024ET 125 amps OBB-175-125VDC-PNL 200
FX2348ET 57.5 amps OBB-125-125VDC-PNL 200
VFX2612E 260 amps OBB-250-125VDC-PNL 400
VFX3024E 150 amps OBB-250-125VDC-PNL 200
VFX3048E 75 amps OBB-125-125VDC-PNL 200
MAXIMUM OVERCURRENT PROTECTION AMPACITY
This rating specifi es the proper overcurrent protection ampacity.
• OBDC breakers are panel-mount circuit breakers.
• Class T DC fuses are terminal-mounted and should always be used in conjuncture with a disconnect mechanism.
• FXs used in home installations should use properly sized DC circuit breakers.
• A DC breaker includes both overcurrent protection and disconnect capability.
• OutBack Power Systems recommends Class T fuses for marine installations where a DC disconnect is not required.