Mastervolt Mass Combi Pro Inverter / Charger (24V / 3500W / 100A) M38523500

The Mastervolt Mass Combi Pro combines a powerful 3 step battery charger along with a heavy duty true sine wave power inverter to provide AC output to operate household items. The unit can be connected up to shore power or a generator for charging and the AC output will automatically switch between mains and inverter mode. It has two separate AC outputs, allowing critical equipment to be put on a different circuit to other appliances to protect them from heavy loads. The inverter/charger is built to be reliable and user friendly, and is equipped with MasterBus Combi integration for easy operation along with the rest of your Mastervolt system.

The Mass Combi Pro features the Power Assist function, which prevents main fuses or breakers being tripped in the event of a weak power supply. It also eliminates power failures and dips to maintain reliable performance. The unit is equally capable at handling heavy loads and more sensitive loads, and with a true sine wave output will not cause harm or damage to your appliances. The high frequency technology used eliminates noise typically associated with power inverters, such as buzzing or humming.

This model can be used in a 3 phase system, or you can combine up to 10 units in parallel for higher power outputs.

Specifications sine wave inverter
Nominal DC voltage: 24 V (19-32 V)
Output voltage: 180-260 V, adjustable
Output frequency: 50/60 Hz (± 0.005 %), configurable
Output waveform: true sine
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): 26 W / 4 W / 0 W
Energy saving mode consumption: 7 W
Parallel configuration: yes, up to 10 units (for larger systems, an external transfer system is required)
3-Phase configuration: yes, up to 3x3
Synchronise with mains/generator: yes

Specifications 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
Battery temperature sensor: yes, included
Battery voltage sense: through MasterShunt, otherwise automatic compensation

Specifications transfer system
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

General specifications
Galvanic isolation: yes
Display/read-out: LED display
Dimensions, hxwxd: 472 x 318 x 178mm (18.6 x 12.5 x 7.0 inch)
Weight: 15.3 kg (33.7 lb)
Compliance: CE, E-mark, ABYC

Technical specifications
Charge characteristic: IUoUo, automatic / 3-step+ for Gel/AGM/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)
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