The Mastervolt Mass Combi combines the best of both worlds with an advanced battery charger and silent inverter rolled into one compact device. It is ideal for most boats from sloops to 16-metre yachts as well as for heavy mobile applications (the Mass Combi is E-mark certified). With two 48 V models added to Mastervolt s extensive range the Mass Combi is now also applicable in 48 Volt systems.

Versatile power supply

One of the key reasons for the Mass Combi s popularity is its versatility in power supply. The starter and service batteries are charged quickly and completely while the inverter provides silent and clean power. The Combi also has two separate AC outputs for light and heavy consumers. To prevent unnecessary depletion of the batteries heavy consumers such as washing machines or air conditioning are only powered when mains voltage or a generator is available.

Modern technology

The design of the Mass Combi is both unique and characteristic of Mastervolt. Rather than installing heavy transformers our lightweight high-frequency technology offers major benefits regarding size weight and sound (no hum!). The technology also ensures an exceptionally high efficiency with a minimal conversion loss and a low no-load consumption. The Mass Combi meets all your requirements and more!

Combined functionality

• Powerboost from battery when mains voltage is limited (mains/generator support).
• Charging two individual battery banks.
• Invert to 230 V/50 Hz pure sine wave voltage.
• Available in 12 24 or 48 V version.
• Multiple distribution and switching systems.
• Parallel function; two parallel Combis for even more power.
• The Mass Combi is CE and E-mark certified.
• Product Specifications | Download

Mass Combi in a MasterBus network

The Mass Combi fits seamlessly within a MasterBus system. All components can be easily connected the system is simple and intuitive to use and requires far fewer cables for installation. One MasterView Easy touch screen panel controls the entire system displays information about the Combi as well as the batteries (via the MasterShunt) and operates the generator. The system can also be combined with Mastervolt s decentralised Digital Switching system.

General specifications		General specifications
Display/read-out	LED display
Dimensions hxwxd	496 x 318 x 279 mm 19.5 x 12.5 x 11.0 inch
Weight	21 kg 46.3 lb
Approvals	CE E-mark ABYC A-31
Technical specifications		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	25 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		Specifications sine wave inverter
Nom. DC voltage	12 V (10-15 V)
Output waveform	true sine
Cont. power at 25 C cos phi 1	3750 W 16.5 A
Surge capability	7500 W 32 A
Parallel configuration	no
Parallel with grid/generator	yes
Output voltage ( 5%)	230 V 50 Hz 0.05% (60 Hz adjustable 0.05%)
Efficiency	90 %
DC consumption at 230 V	< 9 W
Search mode consumption	1 W
Specifications battery charger		Specifications battery charger
Nom. input voltage	230 V (180-265 V) 45-65 Hz
Max. charge current (adjustable)	200 A at 14.25 V
Primary AC consumption (full charge)	3312 W 14.4 A
Charge voltage 25 C (Absorption/Float)	14.25/13.25 V
Charge current second output	2x 5 A
Temperature sensor battery	delivered as standard with 6 mtr cable and telejack plug