Outback Power Systems FX 2024 T Maximum Overcurrent Protection Ampacity, Wire Sizes

MAXIMUM OVERCURRENT PROTECTION AMPACITY

This rating specifies 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.

MODEL	AMPACITY	DC BREAKER	DC FUSE
FX2012(M)T	260 amps	OBDC-250	Class T-400 (Mobile Only)
FX2024(M)T	175 amps	OBDC-175	Class T-300 (Mobile Only)
FX2532(M)T	175 amps	OBDC-175	Class T-300 (Mobile Only)
FX2548T	100 amps	OBDC-100	Not Recommended
VFX2812(M)	260 amps	OBDC-250	Class T-400 (Mobile Only)
VFX3524(M)	260 amps	OBDC-250	Class T-400 (Mobile Only)
VFX3232(M)	175 amps	OBDC-175	Class T-300 (Mobile Only)
VFX3648	175 amps	OBDC-175	Not Recommended

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 find			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	.078	1.98
12	1.98		.0051	3.31	.101	2.57
10	1.24		.0082	5.26	.126	3.20
8	0.78		.0130	8.37	.162	4.11
6	0.50		.0206	13.30	.215	5.46
4	0.31		.0328	21.15	.269	6.83
2	0.19		.0521	33.62	.337	8.56
1	0.15		.0657	42.41	.376	9.55
1/0	0.12		.0829	53.50	.423	10.74
2/0	0.10		.1045	67.43	.508	12.90
3/0	0.08		.1318	85.01	.576	14.63
4/0	0.06		.1662	107.20	.645	16.38

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