MASS COMBI ULTRA Charger/ Inverter 24 V/
3500 W/ 100 A
MASTERVOLT
The MASS COMBI ULTRA represents the most advanced technology (V6 radio frequency technology) in a compact package. This new technology combines sine wave inverter and battery IUOU charger in one housing. Due to the space-saving design and easy installation, the devices are ideal for use on yachts and motorhomes. Each component has been designed for safe and continuous operation, from electronics to connection technology, from the cooling system to the design. The devices are equipped with a built-in master switch (switching between shore and shipboard power supply). In addition to the supply via a shore connection, a generator connection and an integrated solar controller (500Wp) are also available. With the unique power support mode, the Mastervolt COMBI ULTRA is able to supply an additional 230 volts from the on-board batteries in case of insufficiently fused shore connections.
The built-in charger is equipped with an extra 10 A output for charging the starter battery, Charge characteristic IUoUo, adjustable for lead acid / gel / AGM etc. batteries.
Furthermore, these devices come with an integrated MasterBus interface, which allows a simple "plug & play" installation. As a member of the "MasterBus family", MASS COMBI ULTRAS can be operated and monitored by means of Mastershunt and MasterView Easy.
Quiet operation
The Combi Ultra can provide up to 50 % of the charging current or inverter capacity without fan cooling. This is perfect for night-time operation; if little power is consumed, the fan stops turning and goes silent. When maximum capacity is required, or the ambient temperature is very high, the Active Optima Cooling concept regulates the fan speed in a linear way, ensuring that it never spins too fast or makes any unnecessary ticking noises.
Exceptional performance
The inverter is quiet, clean and efficient, and offers the full capacity even in extreme ambient temperatures. Pure sine wave energy and a peak capacity of 200 % guarantee a problem-free start, even for the heaviest loads.
Optimal battery use
The powerful battery charger simultaneously charges two battery banks and provides a full charge current in ambient temperatures up to 40 °C. Meticulous load properties and a low ripple current guarantee a long battery life. The 24 V model can combine 12 V and 24 V battery banks.
Technical specifications
Nominal DC voltage
24V (9.5-16V)
Output voltage
adjustable 180-260 V.
Output frequency
50/60 Hz (± 0.005%), configurable
Output waveform
true sine, total harmonic distortion <1% under standard conditions
Continuous power at 40°C / 104°F, cos phi 1
3500 W
Max. peak load
7000W
Max. efficiency
≥ 92%
Max. ripple on DC (battery at full load)
<5%
No-load power consumption on DC (ON/inverter OFF/ OFF/energy-saving)
16 W / 4 W / 0 W / 7 W
Parallel connection
yes, up to 10
3-phase configuration
yes, up to 3x3
Synchronize with mains/generator
yes
Input voltage range
184-275 V
Max. input current
16 A
Max. charge current at 40°C / 104°F
100 A at 28.5 V, adjustable
Output voltage of the second charger
12V
Output current of the second charger
10 A
Temperature sensor battery
yes, included
Battery voltage sense
through MasterShunt, otherwise automatic compensation
AC input 1
50 A (generator only, switched)
AC input 2
30 A (mains only, switched)
AC output 1
67 a
AC output 2
50 A (switched)
AC input fuse
no
Transfer speed
seamless (<1 ms)
Transfer voltage range
184-275 V, adjustable
Transfer frequency range
35-68 Hz, adjustable
Input voltage range
25-50 v
Max. PV peak power
500 Wp
Max. input current
19 A
Max. charge current
15 A at 28.5 V
MPP tracker
full power at 35-80V
Display/read-out
LED display
Dimensions, HxWxD
472 x 318 x 178 mm
Weight
15.3 kg
Approvals
CE, ABYC
Charge characteristic
3-step + (IUoUo, fully automatic)
Battery types
AGM / gel / MLI / flooded / traction / spiral
Recommended battery capacity
~ 200-600 Ah (based on gel batteries, other models may vary)
Ground relay
yes, configurable
Temperature range (ambient temp.)
-25°C to 60°C, derating > 40°C
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
Cooling
maintenance free vario fans
Power Assist
yes
MasterBus compatibility
yes
Features
Discover the features that make this product stand out. From technical details to special
functions – we’ve summarized all the key information for you.
Charging outputs
2
Temperature sensor can be connected
Integrated fan