Mass Combi Ultra 24/3500 - 100 - Charger-Inverter Combi

The Mass Combi ultra 24/3500-100 is equipped with the latest technologies. The new ‘V6’ inverter technology ensures a uniquely low stand-by use, while an ultra-fast Digital Signal Processor guarantees seamless switching between all available energy sources. Power Assist prevents power dips and failures, even with a weak electricity connection or small generator. Moreover, all Mass Combi Ultra models are equipped with MasterBus.

Higher yield from solar energy
At Mastervolt we used our knowledge gained in the grid connected solar sector to make a super-efficient built-in MPPT solar charge regulator. Compared to most solar charge regulators on the market, the MPPT offers up to 30 % more yield from solar panels. The solar panels power ‘hidden’ consumers and keep your batteries in optimal condition.

Quiet operation
The Mass Combi ultra 24/3500-100 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.

SPECIFICATIONS

Sine Wave Inverter

• Nominal DC voltage: 24 V (19 – 32 V)
• Output voltage: 230 V (± 2 %), adjustable 180-260 V
• Output frequency : 50/60 Hz (± 0.005 %), configurable
• Output waveform: true sine, Thd < 1 % under standard conditions
• Continuous power at 40 °C / 104 °F, cos phi 1: 3500 W
• Max. peak load: 7000 W
• 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 configuration: yes, up to 10 standard
• 3-Phase configuration: yes, up to 3x3
• Synchronize with mains/generator: yes

Battery Charger

• 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
• Secondary charger output voltage: 12/24 V, selectable
• Secondary charger output current: 10 A
• Battery temperature sensor: yes, included
• Battery voltage sense: through MasterShunt, otherwise automatic compensation

Transfer System

• 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

Solar Input (DC)

• Input voltage range: 25-100 V
• Max. PV peak power: 500 Wp
• Max. input current: 19 A
• Max. charge current: 15 A at 28.5V
• MPP Tracker: full power a 35-80 V

General Specifications

• Display/read-out: LED display
• Dimensions (hxwxd): 472 x 318 x 178 mm | 18.6 x 12.5 x 7.0 inch
• Weight: 15.3 kg | 33.7 lb
• Approvals: CE, ABYC

Technical Specifications

• Charge characteristic: 3-step+ (IUoUo, fully automatic)
  Battery types: AGM/gel/MLI/flooded/spiral/traction
  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 > 40 °C | -13 °F to 140 °F
  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 compatible: yes

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manual_mass_combi_ultra_en.pdf