Freedom XC PRO 3000 (818-3010)
Xantrex Freedom XC PRO 3000 120V wiring diagram
12V inverter/charger with 3000W continuous 120VAC output, 150A charging and a 50A transfer relay (40A continuous). The manual publishes 304A nominal DC input at full inverter load. Standard 818-3010 and marine variants have different installation hardware; this entry is the standard model.
- Nominal voltage
- 12 V
- Compatible systems
- 12 V
- Rated power
- 3,000 W
Wiring diagram
How the Freedom XC PRO 3000 is wired.
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
The example covers only the 12 V battery connection for standard model 818-3010. It uses the manual's 4/0 AWG minimum (120 mm² in this catalog), a 350 A Class T fuse, 1.4 m main conductors and a 0.05 m positive link to the disconnect. The 1.45 m total positive path and 1.4 m return stay below the manual's 1.5 m limit. The 304 A value is published nominal full-load DC input. Verify actual battery/BMS capability and the complete AC, grounding, transfer and installation requirements separately. Manufacturer installation manual
Edit this wiring exampleCable sizing for this example
Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.
1.4 m one way
12 V system
- Wire
- 120 mm² · 4/0 AWG
- Example fuse
- 350 A
- Design current
- 304 A
- Voltage drop
- 1.0%
Sized against ABYC E-11. The design current is the part's continuous draw. The length is one way; voltage drop includes an equal-length return.
Run-length and manufacturer assumptions
The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.
The example covers only the 12 V battery connection for standard model 818-3010. It uses the manual's 4/0 AWG minimum (120 mm² in this catalog), a 350 A Class T fuse, 1.4 m main conductors and a 0.05 m positive link to the disconnect. The 1.45 m total positive path and 1.4 m return stay below the manual's 1.5 m limit. The 304 A value is published nominal full-load DC input. Verify actual battery/BMS capability and the complete AC, grounding, transfer and installation requirements separately. Manufacturer installation manual
Supporting parts
- 2.8 m total of 120 mm² (4/0 AWG) marine cable
- Terminations for 120 mm² cable, matched to the equipment's screw terminals, leads or studs
- 350 A fuse and holder on the positive run
- Heat-shrink, strain relief and terminal boots sized to the cable
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Installation notes
Before you install.
Open a question for model-specific guidance and sources.
Verified against the manufacturer's documentation (rev. 975-0799-01-01 Rev G; standard 818-3010 3000W / 150A column), checked 2026-10-01. Manufacturer documentation →
Which Freedom model is covered?
This entry is the standard Freedom XC PRO 3000, 818-3010, with 12 V battery input, 3000 W continuous AC output and 150 A charging. The Rev G specifications publish 304 A nominal DC input at full inverter load. Marine variants and the non-PRO Freedom XC must not inherit this model’s details indiscriminately.
What are the DC installation requirements?
Printed page 21 calls for 4/0 AWG, each one-way battery cable under 1.5 m / 5 ft, and a 350 A maximum battery fuse. Use a correctly rated battery disconnect and fuse close to the positive source. DC stud torque is 8–10 Nm; the chassis grounding lug has its own lower 2.6 Nm requirement.
How does the AC side work?
Separate AC IN from AC OUT; never backfeed the output from another source. The transfer relay is rated 50 A with 40 A continuous service. AC neutral/earth switching and GFCI compatibility must follow the manual’s application diagram. The 3000 W inverter rating does not mean its DC terminals carry 25 A: that figure belongs to 120 V AC output.
What must be commissioned?
Set battery chemistry, charging current, low-battery behavior and available AC input current. Confirm the battery/BMS can support inverter demand and accept charging. Test both shore-powered charging and loss-of-shore transfer with a suitable load. Preserve ventilation and use the additional drip-protection installation requirements when fitting the standard model in a marine application.
Technical reference
Specifications and terminal map.
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Catalog specification
12V inverter/charger with 3000W continuous 120VAC output, 150A charging and a 50A transfer relay (40A continuous). The manual publishes 304A nominal DC input at full inverter load. Standard 818-3010 and marine variants have different installation hardware; this entry is the standard model.
- Nominal voltage
- 12 V
- Compatible systems
- 12 V
- Rated power
- 3,000 W
- Continuous draw
- 304 A
- Rated output
- 150 A
Terminal map
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
BATT +
positive · bidi
BATT −
negative · bidi
CHASSIS
ground · bidi
AC IN L
neutral · input
AC IN N
neutral · input
AC OUT L
neutral · output
AC OUT N
neutral · output
AC PE
ground · bidi
A dash means a current rating is not specified here.
Sources and sizing method
Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.
Example sizing. Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. Results use the example current and run length shown above. Set your actual equipment, lengths and installation conditions in Crimp before choosing hardware.
Read how the sizing worksNext step
Plan your installation with Freedom XC PRO 3000.
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