Mastervolt
Mastervolt Mass Combi Ultra Inverter/Charger (48V / 3500W / 50A)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Mass Combi Ultra 48/3500-50 is a powerful, complete and versatile 48V inverter/charger built for professional and semi-professional use. It pairs a 3500 W true sine wave inverter with an intelligent 3-step+ 50A battery charger in one compact, hum-free unit, and for larger installations up to 35 kW it can be operated in parallel or 3-phase configurations.
The latest inverter technology delivers a uniquely low standby draw, while an ultra-fast Digital Signal Processor switches seamlessly between every available energy source. Power Assist prevents power dips and tripped fuses even on a weak shore line or small generator, and the Active Optima Cooling concept keeps the unit quiet by holding the fan still until extra capacity is required.
Dual AC inputs and outputs let the generator and mains connections each be optimised, and a secondary charger output lets a second battery bank be charged at the same time. Integrated MasterBus communication ties the Combi into a wider Mastervolt monitoring and control system.
PRODUCT DETAILS
- 48V inverter/charger with 3500 W true sine output and 200% (7000 W) peak power
- Intelligent 3-step+ 50A charger with low DC ripple for fast charging and long battery life
- Secondary charger output (12/24 V, 10 A) charges two battery banks simultaneously
- Dual AC inputs (generator and mains) and separate AC outputs
- Seamless transfer (< 1 ms) between mains, generator and inverter
- Power Assist prevents blown fuses on a weak supply or small generator
- Active Optima Cooling keeps operation quiet, up to 50% capacity fan-free
- Parallel (up to 10 units) and 3-phase configurations up to 35 kW
- Compact, lightweight and hum-free thanks to HF technology
- Integrated MasterBus communication; CE, ABYC and RMRS certified
- Mass Combi Ultra 48/3500-50 inverter/charger
- Battery temperature sensor
- User and installation manual
No compatible transducers listed for this product.
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Technical specifications
| Nominal DC voltage | 48 V (38-62 V) |
| Output voltage | 180-260 V, adjustable |
| Output frequency | 50/60 Hz (+/- 0.005 %), configurable |
| Output waveform | True sine |
| Continuous power at 40 C, cos phi 1 | 3500 W |
| Max. peak load | 7000 W |
| Max. efficiency | >= 93 % |
| Max. ripple on DC (battery at full load) | < 5 % |
| No-load power consumption on DC (ON / inverter OFF / OFF) | 26 W / 4 W / 0 W |
| Energy saving mode consumption | 7 W |
| Parallel configuration | Yes, up to 10 units (external transfer system required for larger systems) |
| 3-Phase configuration | Yes, up to 3x3 |
| Synchronise with mains/generator | Yes |
| Charger input voltage range | 184-275 V |
| Charger max. input current | 16 A |
| Max. charge current at 40 C | 50 A at 57 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 |
| AC input (generator) | 50 A (switched) |
| AC input | 30 A (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 |
| Charge characteristic | IUoUo, automatic / 3-step+ for Gel/AGM/MLI/flooded/spiral/traction |
| Recommended battery capacity | ~ 100-300 Ah (based on gel batteries, may differ for other types) |
| Ground relay | Yes, configurable |
| Temperature range (ambient) | -25 C to 60 C, derating > 40 C |
| Cooling | Vario fan |
| 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 |
| Power Assist | Yes |
| MasterBus compatible | Yes |
General specifications
| Galvanic isolation | Yes |
| Display/read-out | LED display |
| Compliance | CE, ABYC, RMRS |
Physical
| Dimensions, hxwxd | 472 x 318 x 178 mm |
| Weight | 15.3 kg |
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