Mastervolt
Refurbished Mastervolt 38523500-REFURB Mass Combi Pro 24/3500-100
Refurbished Mastervolt 38523500-REFURB Mass Combi Pro 24/3500-100
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Refurbished Mastervolt Mass Combi Pro 24/3500-100 (230V) Inverter / Charger
The Mastervolt 38523500-REFURB is a factory-refurbished, heavy-duty commercial/marine 24V sine wave inverter and high-output battery charger. Delivering a robust continuous output of 3500 VA (2850 W continuous at 40°C) and a 100 A 3-stage+ battery charger, the Mass Combi Pro line is designed for professional, high-demand marine vessels and commercial installations requiring non-stop reliability.
Engineered with high-frequency transformerless electronics and a dedicated AC transfer system, the Mass Combi Pro features Power Assist technology to prevent shore power fuses from tripping by automatically supplementing weak shore grid or generator capacity with inverter battery power. Integrated MasterBus and CZone network integration provides comprehensive system monitoring and digital switching capabilities.
Key Features
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Commercial-Grade Continuous Output: Delivers 2850 W continuous power at high ambient temperatures (40°C) with peak surges up to 6000 W.
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100A Heavy-Duty Charging: Multi-stage adaptive charger with dual outputs (main battery bank + secondary 3 A starter battery output).
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Power Assist & Load Shifting: Seamlessly boosts generator or weak shore power capacity with battery power when peak electrical loads occur.
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Ultra-Fast AC Transfer: Integrated 50 A transfer switch toggles between AC input and inverter mode with near-zero transfer time (< 10 ms).
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Factory Certified Refurbished: Fully tested, inspected, and re-certified by Mastervolt technicians to meet original performance standards.
Specifications
| Feature | Specification |
| Manufacturer / Brand | Mastervolt |
| Part Code / SKU | 38523500-REFURB |
| Product Condition | OEM Factory Refurbished / Re-certified |
| Series | Mass Combi Pro (230V Series) |
| Nominal DC Voltage | 24 V DC (19-32V DC Operating Range) |
| Continuous Power Rating (40°C) | 2850 W (3500 VA) |
| Peak / Surge Rating | 6000 W (1.5 seconds) |
| AC Output Voltage / Frequency | 230 V AC (± 2%) / 50/60 Hz (± 0.05%) |
| Output Waveform | Pure Sine Wave (THD < 1%) |
| Maximum Battery Charger Output | 100 A DC at 28.8 V (Main) + 3 A (Secondary) |
| Charge Algorithm | 3-Stage+ (Bulk, Absorption, Float) + Custom Li-Ion Profile |
| AC Input Voltage Range | 180-275 V AC (45-65 Hz) |
| Integrated Transfer Switch | 50 A (Seamless automatic relay transfer) |
| Power Assist / Sharing | Yes (Prevents tripped AC breakers) |
| Maximum Efficiency | ≥ 93% |
| No-Load / Standby Consumption | < 26 W (Normal) / < 2 W (Energy Save Mode) |
| Communication Interfaces | MasterBus, CZone, NMEA 2000 (via MasterBus interface) |
| Cooling Method | Forced Air (Variable-Speed Temperature Fans) |
| Operating Temperature Range | -25°C to +60°C (Derating above 40°C) |
| Dimensions (H * W * D) | 472 mm * 318 mm * 178 mm (18.6'' * 12.5'' * 7.0'') |
| Weight | 15.3 kg (33.7 lbs) |
| Ingress Protection Rating | IP23 (Vertical Mount) |
| Compliance / Approvals | CE, ABYC A-31, IEC 62109-1, IEC 62109-2, E-Mark |
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