38
Recommended Wire Sizes
FX Model Max DC
Amps
NEC Max
Amps x
1.25*
2% Voltage
Drop
Ohms
Allowed
OutBack
Suggested
Cables
Max Bat-
tery Cable
Length**
(Positive +
Negative)
FX2012ET
200 250 0.24 0.001200 4/0 250 20’
FX2024ET
125 156.25 0.48 0.003840 2/0 175 30’
VFX3024E
150 187.5 0.48 0.003200 4/0 30’
FX2348ET
57.5 71.875 0.96 0.016696 1/0 30’
VFX2612E
260 325 0.24 0.000923 4/0 15’
VFX3048E
75 93.75 0.96 0.012800 1/0 30’
* This is an example of ampacity derating;
follow derating requirements for your lo-
cal and national electrical codes.
** Divide lengths in half for one-way runs.
MAINTENANCE
If damaged or malfunctioning, the FX should be repaired by a quali ed user, installer, or service center
following OutBack Power Systems’ instructions and guidelines. Please contact your energy dealer for
assistance. Incorrect repairs and/or reassembly risks malfunction, electric shock or re.
For routine, user-approved maintenance:
• Disconnect all circuit breakers and related electrical connections before doing any cleaning or
adjustments.
• Solar modules may produce hazardous voltages when exposed to light; cover them with opaque
material before servicing any connected equipment or service at night.
• If a remote or automatic generator start system is used, disable the automatic starting circuit and/or
disconnect the generator from its starting battery while servicing. This will prevent accidental it to
starting or operation.
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