OutBack Power VFX3524M — 3500W, 24VDC Mobile & Marine True Sine Wave Inverter/Charger
Overview
The OutBack Power VFX3524M is a rugged, UL458-listed mobile & marine inverter/charger delivering 3500 watts of true sine wave output from a 24VDC battery bank. Purpose-built for boats, RVs, work trucks, and mobile off-grid platforms, it combines clean AC power, an integrated 85A charger, and a 30A automatic transfer switch for seamless shore/generator integration. Intelligent thermal management, marine-compliant neutral/ground switching, and stackable modularity make it a dependable core for critical mobile systems.
Key Features
- 3500W continuous true sine wave output; 6000W surge for motor/compressor loads
- 85A power-factor-corrected battery charger; 30A AC transfer relay
- 120VAC / 60Hz output with ±2% regulation; <5% THD
- Marine-compliant neutral/ground switching (UL458 with marine supplement)
- Vented chassis, fan-assisted cooling, and robust overload/thermal protections
- Stackable/modular architecture for multi-inverter systems
Applications
- Marine vessels, houseboats, and workboats
- RVs, trailers, and expedition vehicles
- Mobile command, medical, and utility fleets
- Remote/mobile workshops and hybrid off-grid power
Industries & Use Cases
- Marine & boating | Recreational vehicles | Specialty vehicles
- Public safety & emergency response | Mobile telecom & broadcast
- Construction, service, and field operations
Technical Specifications
| Inverter Output |
| Continuous Power |
3500 W |
| Surge Capacity (5 sec) |
6000 W |
| AC Output Voltage / Frequency |
120 VAC / 60 Hz |
| Output Current (RMS) |
29.2 A |
| Total Harmonic Distortion (THD) |
< 5% (typ. ~2%) |
| Voltage Regulation |
±2% |
| Efficiency |
~92% |
| Idle Consumption |
~20 W (full), ~6 W (search) |
| DC / Charger / Transfer |
| Nominal DC Input |
24 VDC |
| Charger Output Current |
85 A |
| AC Input Range (Charger) |
80–150 VAC (adjustable) |
| AC Input Frequency |
54–66 Hz |
| Power Factor Correction |
Yes |
| AC Transfer Relay |
30 A automatic |
| Mechanical & Environmental |
| Dimensions (H × W × D) |
12 × 8.25 × 16.25 in (30.5 × 21 × 41 cm) |
| Weight |
61 lb (28 kg) |
| Cooling |
Vented, fan-assisted |
| Enclosure |
Indoor / Mobile |
| Certifications & Warranty |
| Certifications |
ETL Listed to UL458 (marine supplement), CSA C22.2 No. 107.1 |
| Warranty |
1-year limited (manufacturer) |
B2B Add-On
Need full documentation? Download the manufacturer’s specification sheet and installation manual in the ADDITIONAL INFORMATION tab above for wiring diagrams, charger profiles, stack configurations, and safety guidance.