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Mastervolt Mass Combi 12/2500-100(120v)


SKU: 37012505 Category:


The Mass Combi, inverter and battery charger in one, is increasingly playing a leading role in carefully designed electrical systems. Mastervolt has integrated the most advanced technology into a compact package, allowing owners to get the most value for their money. This offers you high-quality basic support for smaller systems without requiring a great deal of space. You will not have to worry anymore about the quality of shore power in any port – things will always work with the Mass Combi!

The most vital functions in your electrical system now come within reach: battery charging, supplying 120V power, switching and the use of extended AC loads to be utilized on board, even when limited shore power is available. Power can be drawn from a shore connection, generator or charged batteries. Mastervolt’s three-step Plus© charging method guarantees more battery power and a longer life span. Batteries are always fully charged and fast, even when a generator is used. And the clean or 120/60Hz power supply is perfectly reliable.

Equipment, including domestic appliances, can now be safely connected to the on board network. Air-conditioning systems, dishwashers and microwave ovens all function perfectly. Even if you are using the washing machine or other power hungry appliances the generator or batteries step in to temporarily bridge the gap. All this because of the tailor-made technology: the power to be independent!

Product code: 37012505

General specifications
Charge current second output 5 A
Efficiency 90 %
Display/read-out LED display
Dimensions, hxwxd 496 x 318 x 156 mm
19.5 x 12.5 x 6.1 inch
Weight 11 kg
24.3 lb
Approvals CE, ABYC A-31
Technical specifications
Charge characteristic IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion
Max. current first output 50 A
Max. current shortbreak / inverter output 35 A
Transfer time 10 ms
Ground relay yes, adjustable by DIP switch
Temperature range (ambient temp.) -25 °C to 80 °C, derating > 25 °C
-13 to 176 °F
Cooling maintenance free vario fans
Sound level ≤ 48 dBA at 1 mtr
Protection degree IP23
Protections over temperature, over load, short circuit, high battery, low battery
MasterBus compatible yes, in combination with a MasterBus Combi Interface
Specifications sine wave inverter
Nom. DC voltage 12 V (10-15 V)
Output waveform true sine
Cont. power at 25 °C, cos phi 1 2500 W – 20.8 A
Surge capability 5000 W – 38 A
Parallel configuration yes
Parallel with grid/generator yes
Output voltage (± 5%) 120 V – 60 Hz , ± 0.05%
DC consumption at 120 V < 9 W
Search mode consumption 0.5 W
Specifications battery charger
Nom. input voltage 120 V – 45-65 Hz
Max. charge current (adjustable) 100 A at 14.25 V
Primary AC consumption (full charge) 1700 W – 14.5 A
Charge voltage 25 °C (Absorption/Float) 14.25/13.25 V
Temperature sensor battery delivered as standard with 6 mtr cable and telejack plug

Additional information

Weight 11 lbs
Dimensions 19.5 × 12.5 × 6.1 in