Xantrex 8153012 Freedom SW Inverter/Charger, 3000W, 12V

The Xantrex Freedom SW 3012 is a heavy-duty 12-volt inverter/charger combining 3,000 watts of continuous true sine wave AC output with a powerful 150-amp battery charger. Designed for demanding marine, RV, commercial-truck and specialty-vehicle electrical systems, it supplies clean 120-volt AC power from the battery bank and automatically recharges the batteries when shore power or generator power becomes available.

Key Features

• Produces 3,000 watts of continuous true sine wave AC power at temperatures up to 40°C
• Delivers up to 6,000 watts of surge power for five seconds
• Integrated 150-amp charger for nominal 12-volt battery banks
• Generator Support Mode supplements generator power during temporary high-demand loads
• Split-phase AC input with dual AC outputs
• Two 30-amp transfer-relay legs
• Transfers between external AC and inverter power in less than 20 milliseconds
• Xanbus-enabled for system configuration, monitoring and accessory integration
• Supports compatible series-stacked installations requiring additional inverter capacity
• Includes a remote battery-temperature sensor for temperature-compensated charging

Application Compatibility

The Freedom SW 3012 is designed for high-demand 12-volt electrical systems, including:

• Recreational and commercial marine vessels
• Motor yachts and larger cruising boats
• Recreational vehicles and motorhomes
• Heavy-duty trucks
• Mobile service and work vehicles
• Specialty and emergency vehicles
• Off-grid systems using 12-volt battery banks

Its five-second 200% surge capacity makes it suitable for compatible refrigerators, pumps, air-conditioning equipment and other motor-driven loads that require substantially more power during startup than during normal operation.

Electrical Specifications

• Nominal DC input voltage: 12 volts
• DC input operating range: 10–16 volts
• Continuous inverter output: 3,000 watts at 40°C
• Surge output: 6,000 watts for five seconds
• AC output voltage: 120 volts
• AC output frequency: 60 Hz ±0.2 Hz
• Output waveform: True sine wave
• Optimal inverter efficiency: 94%
• No-load inverter draw: Less than 1.5 amps DC
• AC configuration: Split-phase input with dual outputs
• Charger output: 150 amps continuous at 25°C
• Charger output voltage: 12 volts DC
• Configurable charging range: 5–16 volts DC
• Charge control: Multistage charging with manual equalisation
• Charger efficiency: Greater than 85%
• Maximum charging AC input: Approximately 24 amps RMS
• AC input voltage: 120 volts
• AC input operating range: 85–140 volts
• Minimum battery voltage for charging: Greater than 5 volts DC
• Transfer-relay capacity: Two 30-amp legs
• Transfer time: Less than 20 milliseconds

Battery Compatibility

The Freedom SW 3012 supports properly configured:

• Flooded lead-acid batteries
• AGM batteries
• Gel batteries
• Lithium iron phosphate batteries
• Custom battery-charging profiles

A compatible Xanbus System Control Panel is required to configure battery type and advanced charger settings. Lithium iron phosphate charging must be selected and configured for the installed battery system rather than assumed from the factory defaults.

Dimensions and Weight

• Length: 15.25 inches / 387 mm
• Width: 13.5 inches / 343 mm
• Height: 7.75 inches / 197 mm
• Net weight: 60.5 lb / 27.5 kg
• Operating-temperature range: -20°C to 60°C
• Storage-temperature range: -40°C to 85°C

Certification and Marine Installation Notice

The Freedom SW 3012 is ETL listed to CSA 107.1, UL 458 and the UL 458 Marine Supplement. Xantrex specifies drip shield part number 808-9004 when UL 458 Marine Supplement compliance is required.

The unit is identified for marine installations following applicable ABYC E-11, A-31 and A-32 requirements. It also complies with FCC Part 15 Subpart B Class B and Canadian ICES-3 Class B electromagnetic-compatibility requirements.

Fitment Notice

The Freedom SW 3012 is designed exclusively for a nominal 12-volt battery bank and must not be connected to a 24-volt system. Confirm battery-bank voltage, available battery capacity, shore-power arrangement, generator output, AC panel configuration and expected startup loads before ordering.

A 3,000-watt inverter can draw well over 250 amps from a 12-volt battery bank under heavy load. The DC conductors, battery fuse, disconnect, battery bank and connection hardware must be selected for the inverter’s actual DC current requirement and installation length.

When This Product Needs Replacement

Inspect or replace the inverter/charger if it repeatedly shuts down under loads it previously supported, fails to transfer correctly between shore or generator power and inverter operation, no longer follows its programmed charging profile or develops recurring overload, low-voltage, over-temperature or Xanbus communication faults.

Before replacing the unit, test the battery bank, DC cable voltage drop, terminal connections, incoming AC source and external circuit protection. Weak batteries, loose terminals and undersized conductors can produce symptoms similar to inverter or charger failure.

Installation Notes

Install the Freedom SW 3012 in a dry, ventilated location protected from water, excessive heat, battery gases and fuel vapours. Use properly sized marine-grade DC conductors, correctly rated battery protection and an accessible DC disconnect.

Secure the approximately 60-pound unit to a structure capable of supporting its weight under vessel movement and vibration. Follow the Xantrex installation guide for mounting orientation, ventilation clearances, chassis grounding, AC wiring and circuit protection.

Install the included remote battery-temperature sensor at the battery bank for accurate temperature-compensated charging. Use drip shield 808-9004 where required for marine certification.

Compatible Accessories

• Xantrex Xanbus System Control Panel – 809-0921
• Xantrex Automatic Generator Start – 809-0915
• Xantrex Freedom SW Remote Panel – 808-9002
• Xantrex GFCI Option – 808-9003
• Xantrex Marine Drip Shield – 808-9004
• Xantrex Series-Stacking Cable – 808-9005
• Xantrex Sequence Power Manager – 809-0913
• Xantrex Telephone-to-Network Cable Adapter – 808-9010
• Xantrex 25-foot Xanbus Network Cable – 809-0940
• Xantrex Freedom SW Remote Cable, 50 ft – 31-6262-00
• Xantrex 75-foot Xanbus Network Cable – 809-0942
• Xantrex Freedom SW Remote-Panel Mounting Bracket – XAN-BRFSW

Alternate Part Numbers

• Standard 12-volt hardwired model: 815-3012
• Model with built-in GFCI: 815-3012-11
• RV-C network version: 815-3012-02
• Unhyphenated catalogue reference: 8153012
• Similar 24-volt model: 815-3024 — not interchangeable

Parts Desk Insight

The Freedom SW 3012 is intended for large 12-volt systems that require substantial AC output, strong motor-starting capacity and rapid battery charging. It should not be confused with the Freedom SW 3024 (815-3024): both produce 3,000 watts, but the 3012 operates from a 12-volt bank and provides a 150-amp charger, while the 3024 requires a 24-volt bank and provides a 75-amp charger. The Xanbus System Control Panel (809-0921) is required to access advanced configuration including custom lithium battery profiles.