Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger 24VDC to 180-260VAC 3500W

Powerful, complete and versatile

Make the most of your solar panels. The Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger features the new inverter technology that ensures a uniquely low stand-by use. 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, this Mass Combi Ultra model is equipped with MasterBus - the intelligent, one-cable MasterBus network of Mastervolt.

Quiet operation
The Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger 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.

Parallel and 3-Phase operation
The Mass Combi Pro functionality goes beyond stand-alone operation, the design also allows parallel and 3-phase configurations for larger applications up to 35 kW. For larger systems, an external transfer system is required.

Dual AC inputs and outputs
The Mass Combi Ultra has inputs for generator or mains supply, each optimised for the power source. A robust intelligent transfer system switches seamlessly between AC power, generator and inverter, and ensures a constant power supply. Flickering lights or failure of electronic equipment belong to the past. Separate AC outputs provide the ability to power heavy users via mains and/or generator.

Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger Features:

• For professional and semi-professional use
• Quiet, powerful inverter with 200 % peak power
• Compact, lightweight and hum-free thanks to HF technology
• Pure sine wave voltage prevents malfunctions and damage to sensitive equipment such as adapters
• 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
• Power Assist: prevents blown fuses
• A dynamic battery voltage window allows you to enjoy AC power for longer without damaging your batteries
• Active Optima Cooling concept prevents unnecessary fan noise
• Quick installation and reliable professional connections
• CE, ABYC and RMRS certified

Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger 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: 3500W
• 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

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

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

• Galvanic isolation: Yes
• Display/read-out: LED display
• Dimensions (H x W x D): 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

• 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

Mastervolt Mass Combi Ultra Pure Sine Wave Inverter Charger User Manual