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About the Product
Power up with confidence using the Mastervolt CombiMaster 12/3000 Inverter/Charger. Designed for 12 V input and 120 V output, this compact, lightweight powerhouse delivers reliable, hum-free performance with longer battery runtime. It can start even the heaviest and most sensitive loads, making it ideal for demanding off-grid or marine applications.
Key advantages
- True sine-wave output ensures safe operation of all electronics and appliances.
- 2600 W continuous power at 40 °C (104 °F) with a 4500 W peak and 6000 W surge, handling demanding devices with ease.
- High efficiency at 93% for economical operation.
- Intelligent 3-step+ battery charger supports flooded, Gel/AGM and MLI batteries for faster, safer charging.
- Automatic switching between mains and inverter mode to ensure a constant power supply.
- Power Assist prevents tripping of mains fuses when connected to a weak land line or small generator.
- Generator compatible for seamless operation with external power sources.
- Integrated communication with MasterBus, CZone and NMEA 2000 for broad monitoring and system integration.
- Easy installation with heavy-duty connections and reliable protection features.
- E-mark certified for compliance and safety in approved markets.
Technical specifications
- Inverter — Nominal DC voltage: 12 V (range 10.2–16 V); Output: 120 V; Output frequency: 60/50 Hz (configurable); True sine wave
- Power — Continuous: 2600 W @ 40 °C / 104 °F; Peak: 4500 W; Surge: 6000 W
- Efficiency — Max 93%;
- Battery charging — Input voltage range: 90–140 V; Max input current: 28 A (adjustable); Max charge current: 160 A at 14.25 V (configurable); Battery temperature sensor included with automatic voltage compensation
- Transfer system — AC input 30 A (switched); AC output 55 A; Transfer speed: 10 ms; Transfer voltage range: wide 70–140 V / narrow 90–140 V; Transfer frequency range: 40–65 Hz
- General — Galvanic isolation: Yes; Display: LED; Dimensions (HxWxD): 17.6 x 11.2 x 6.1 in; Weight: 20.5 lb
- Safety and environments — IP23; Temperature range: -13 °F to 140 °F; Cooling: vario fan; Humidity protection: conformal coating, up to 95% RH non-condensing; Ground relay: configurable; Compliance: ABYC A31, UL1236, UL1741, SAEJ1171, FCC Class B
- Compatibility — Recommended battery capacity 300–800 Ah (based on gel batteries; may differ for other chemistries); Suitable for use with generator power and integrated with MasterBus, CZone and NMEA 2000
| Specifications sine wave inverter | |
| Nominal DC voltage | 12 V (10.2—16 V) |
| Output voltage | 120 V |
| Output frequency | 60/50 Hz (configurable) |
| Output waveform | true sine |
| Continuous power at 40 °C / 104 °F, cos phi 1 | 2600 W |
| Peak power (30 sec) | 4500 W |
| Surge power (5 sec) | 6000 W |
| Max. efficiency | 93 % |
| Battery no-load power consumption | 30 W (on mode) / < 1 mA (off mode) |
| Energy saving mode consumption | 10 W |
| Synchronise with mains | yes |
| Specifications battery charger | |
| Input voltage range | 90—140 V |
| Max. input current | 28 A (adjustable) |
| Max. charge current at 40 °C / 104 °F | 160 A at 14.25 V (configurable) |
| Battery temperature sensor | yes, included |
| Battery voltage sense | automatic compensation |
| Specifications transfer system | |
| AC input | 30 A (switched) |
| AC output | 55 A |
| AC input fuse | yes |
| Transfer speed | 10 ms |
| Transfer voltage range | wide: 70—140 V / narrow: 90—140V |
| Transfer frequency range | 40-65 Hz |
| General specifications | |
| Galvanic isolation | yes |
| Display/read-out | LED display |
| Dimensions, hxwxd | 17.6 x 11.2 x 6.1 inch |
| Weight | 20.5 lb |
| Compliance | ABYC A31, UL1236, UL1741, SAEJ1171, FCC class B |
| Technical specifications | |
| Charge characteristic | UoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable |
| Recommended battery capacity | 300-800 Ah (based on gel batteries, may differ for other types) |
| Ground relay | yes, configurable by means of mechanical jumper |
| Temperature range (ambient temp.) | -13 °F to 140 °F |
| Cooling | vario fan |
| Protection degree | IP23 (vertical mounting) |
| Safety class | IEC protection class I |
| Humidity protection | conformal coating, max. 95 % relative humidity, non condensing |
| Protections | over-temperature, overload, short circuit, high/low battery voltage |
| Power Assist | yes, supports AC input with power from the battery |
| Power Sharing | yes, allows you to select AC Input fuse setting |
| MasterBus compatible | yes |
| CZone / NMEA 2000 compatible | yes |
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