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Mass Combi 24/4000-120
(120 V)
Product code: 37024005
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The Mastervolt Combi literally ‘combines' an advanced battery charger and silent-running inverter in
one remarkably compact device. But that isn't all: it also adds extra functionality. This includes Power Assist,
system paralleling and secondary battery charging. This makes the Combi your ideal solution for a wide range
of needs, from low power recreational use right up to full-on, high power industrial applications.
Versatility in power supply
Every model of the Mastervolt Combi is highly versatile, so using one greatly simplifies installation. This single
product not only brings you fast and complete charging of your starter and service batteries, it also provides
a silent, robust and clean AC power supply. Multiple AC outputs allow heavy-draw items to be separated from
the most critical equipment, making sure they don't unintentionally deplete your batteries. The AC inputs
facilitate both mains and generator connections, which the Combi can support with additional power if your
loads require more than either can provide. Essentially, just this one product can handle all the power
requirements in an autonomous system.
Modern technology
The unique design of the Combi range is typically Mastervolt. Rather than installing heavy transformers, you
can use our high-frequency technology for major benefits in terms of compact size, a lightweight chassis and
silent running (there is no transformer hum).
Perfect in a MasterBus system
Designed for system compatibility, the Mastervolt Combi fits perfectly into a MasterBus system. The network
will allow you to easily control and monitor your product, while also optimising the configuration to your
needs. In addition, the internal communication between other MasterBus products in your system can even
boost the overall electrical performance.
Benefits of the Mass Combi
· Compact, lightweight and no hum thanks to HF technology.
· High yield and more power from your batteries.
· Intelligent 3-step+ battery charger with low DC ripple current for fast charging times and long battery life.
· Charges two individual battery banks simultaneously.
· Quiet, powerful inverter with 200 % peak power.
· Power Assist: extra power assistance from the batteries in case of limited grid or generator power
(prevents blown fuses).
· Pure sine wave energy prevents failures and damage to sensitive equipment such as adapters.
· Dual AC outputs to separate critical equipment from heavy loads.
· Higher yields possible via parallel switching (only 2500 W models).
· Professional connections ensure fast installation and operational security.
· CE approved and E-marking for mobile applications.
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Specifications
Specifications sine wave inverter
Nominal DC voltage 24 V (19-31 V)
Output voltage 120 V (± 5 %) 60 Hz, ± 0.05 %
Output waveform true sine
Continuous power at 25 °C / 77 °F, cos phi 1 3750 W
Max. peak load 7500 W
Max. efficiency >= 90 %
Max. ripple on DC (battery at full load) < 5 %
Energy saving mode consumption 1 W
Parallel configuration no
3-Phase configuration no
Synchronise with mains/generator yes
Specifications battery charger
Input voltage range 90-135 V
Max. charge current at 25 °C / 77 °F 120 A at 28.5 V, adjustable
Primary AC consumption (full charge) 3500 W - 29 A A
Secondary charger output voltage 24 V
Secondary charger output current 2x 5 A
No-load power consumption on AC < 30 W
Battery temperature sensor yes, included
Battery voltage sense automatic compensation
Specifications transfer system
AC input 1 50 A (25 A switched, to short break output)
AC output 1 25 A (short break output)
AC output 2 50 A (power output)
AC input fuse yes, resettable
Transfer speed semi-seamless (10 ms typical)
Transfer voltage range 90-135 V
Transfer frequency range 45-65 Hz
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, ABYC
Technical specifications
Charge characteristic IUoUo, automatic / 3-step+ for Gel/AGM/MLI/ flooded/spiral/traction
Max. current power output 50 A
Max. current shortbreak / inverter output 35 A
Recommended battery capacity ~ 200-600 Ah (based on gel batteries, may differ for other types)
Ground relay yes, configurable
Temperature range (ambient temp.) -25 °C to 60 °C, derating > 25 °C
-13 to 140 °F
Cooling maintenance-free vario fans
Protection degree IP23 (vertical mounting)
Safety class IEC protection class I
Humidity protection conformal coating, max. 95 % relative humidity, non condensing
Protections over temperature, over load, short circuit, high/low battery voltage
Power Assist yes
MasterBus compatible yes, in combination with a MasterBus Combi Interface
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