Mastervolt CombiMaster 12/3000-160 120V Inverter/Charger – 35513000

Product Description

The Mastervolt CombiMaster 12/3000-160 combines a high-output true sine wave inverter, a 160-amp 12-volt battery charger and a fast automatic AC transfer system in one compact unit. Designed for marine, recreational and semi-professional power systems, it supplies clean 120-volt AC power from the battery bank and automatically transfers to shore power or generator power when an acceptable external source becomes available. Its integrated Power Assist function can supplement a limited shore connection or small generator with battery power during temporary high-demand loads.

Key Features

• True sine wave AC output for sensitive electronics and motor-driven equipment
• 2,600 watts of continuous output at 40°C
• 4,500 watts of peak power for up to 30 seconds
• 6,000 watts of surge power for up to five seconds
• Integrated 160-amp battery charger
• Automatic three-step-plus charging
• Fast 10-millisecond AC transfer
• Power Assist supplements limited shore or generator capacity
• Power Sharing allows the available AC-input limit to be configured
• Compatible with generators
• Integrated MasterBus, CZone and NMEA 2000 communication
• Included battery-temperature sensor
• Automatic battery-voltage-sense compensation
• Galvanic isolation between AC and DC systems
• Conformal-coated electronics for humid marine environments
• Heavy-duty power connections for permanent installation

Application Compatibility

The CombiMaster 12/3000-160 is designed for nominal 12-volt electrical systems in applications such as:

• Cruising and recreational boats
• Motor yachts
• Commercial and semi-professional vessels
• Recreational vehicles
• Mobile workshops and service vehicles
• Remote and off-grid power systems
• Backup power installations

The true sine wave output is suitable for properly sized refrigerators, microwave ovens, entertainment equipment, computers, pumps, tools and other appliances that may not operate correctly from modified sine wave power.

Inverter Specifications

• Nominal DC input: 12 volts
• DC operating range: 10.2–16 volts
• AC output voltage: 120 volts
• Output frequency: 60 or 50 Hz, configurable
• Output waveform: True sine wave
• Continuous output at 40°C: 2,600 watts
• Peak output for 30 seconds: 4,500 watts
• Surge output for five seconds: 6,000 watts
• Maximum inverter efficiency: 93%
• No-load consumption in on mode: 30 watts
• Energy-saving mode consumption: 10 watts
• Off-mode consumption: Less than 1 mA
• Synchronisation with incoming AC: Yes

Battery-Charger Specifications

• Maximum charge current: 160 amps at 14.25 volts
• Charge current rating measured at 40°C
• AC charger-input range: 90–140 volts
• Maximum adjustable AC input current: 28 amps
• Charging method: Automatic three-step-plus
• Charging characteristic: IUoUo
• Supported profiles: Flooded lead-acid, gel, AGM and Mastervolt MLI lithium
• Battery-temperature sensor: Included
• Battery-voltage compensation: Automatic
• Recommended battery capacity: 300–800 Ah based on gel batteries

Battery-bank recommendations may differ with battery chemistry, discharge rate and the battery manufacturer’s charging limits.

Automatic Transfer System

• Switched AC input capacity: 30 amps
• Maximum AC output capacity: 55 amps
• Internal AC-input fuse: Yes
• Transfer speed: 10 milliseconds
• Wide transfer-voltage range: 70–140 volts
• Narrow transfer-voltage range: 90–140 volts
• Accepted transfer-frequency range: 40–65 Hz
• Power Assist: Included
• Power Sharing: Included

Power Assist allows the inverter to add battery-derived AC power when connected loads temporarily exceed the configured shore-power or generator limit. Power Sharing allows the installer or operator to limit incoming AC current to suit the available source.

Battery Compatibility

The CombiMaster can be configured for:

• Flooded lead-acid batteries
• AGM batteries
• Gel batteries
• Mastervolt MLI lithium-ion batteries
• Other supported battery systems using correctly configured charging parameters

Lithium installations must use a compatible battery-management system and charging configuration. Do not assume that a generic lithium battery is compatible solely because the charger includes an MLI profile.

Dimensions and Weight

• Height: 17.6 inches / 448 mm
• Width: 11.2 inches / 284 mm
• Depth: 6.1 inches / 155 mm
• Weight: 20.5 lb / 9.3 kg
• Ambient operating-temperature range: -25°C to 60°C
• Output derating begins above 40°C
• Cooling: Variable-speed fan
• Protection rating: IP23 when vertically mounted
• Safety classification: IEC Protection Class I

Environmental Protection

• Conformal-coated electronics
• Suitable for up to 95% non-condensing relative humidity
• Protection against over-temperature
• Overload protection
• Short-circuit protection
• High and low battery-voltage protection
• Configurable internal ground relay

The IP23 rating applies only when the unit is installed vertically and in accordance with the Mastervolt installation instructions. It is not intended for direct exposure to spray, flooding or continuous moisture.

System Monitoring and Integration

The CombiMaster includes communication support for:

• MasterBus
• CZone
• NMEA 2000

Compatible monitoring options include:

• Mastervolt SmartRemote
• Mastervolt EasyView 5
• CZone Touch 5
• CZone Touch 10
• Compatible third-party NMEA 2000 multifunction displays

Required network cables, adapters, terminators and displays may be sold separately.

Fitment Notice

Part number 35513000 is the North American CombiMaster 12/3000-160 model for nominal 12-volt DC systems and 120-volt AC output. It must not be confused with the 230-volt CombiMaster 12/3000-100, part number 35013000, or the 24-volt CombiMaster 24/3000-70, part number 35523000.

Confirm all of the following before ordering:

• Battery-bank voltage
• AC output voltage
• Shore-power and generator capacity
• Battery chemistry and capacity
• Required continuous and startup loads
• Available mounting space
• Cable length and conductor size
• Overcurrent-protection requirements
• Network integration requirements

At high inverter loads, the unit can draw more than 200 amps from a 12-volt battery bank. DC cabling, terminals, battery switches and overcurrent protection must be selected for the actual installation and cable length.

Installation Notes

Install the CombiMaster vertically in a dry, ventilated compartment protected from direct water exposure, excessive heat, battery gases and fuel vapours. Maintain the clearances specified in the installation manual so the variable-speed cooling fan can move sufficient air.

Use correctly sized marine-grade conductors, approved terminals, suitable battery and AC protection and an accessible DC disconnect. Install the included battery-temperature sensor at the battery bank and configure the charger for the correct battery chemistry before commissioning.

AC and DC installation should be completed by a qualified marine or mobile electrical technician. Follow the current Mastervolt manual and applicable ABYC, CSA and local electrical requirements.

When This Product Needs Replacement

Inspect or replace the inverter/charger if it:

• No longer produces stable true sine wave AC output
• Repeatedly shuts down under loads it previously supported
• Fails to transfer properly between shore, generator and inverter operation
• No longer follows its configured charging profile
• Produces recurring overload, over-temperature or battery-voltage faults
• Loses communication with verified MasterBus, CZone or NMEA 2000 equipment
• Shows evidence of overheated terminals, moisture intrusion or internal damage

Before replacing the unit, test the battery bank under load and inspect the AC source, DC voltage drop, fuses, breakers, disconnects, network cabling and terminal connections.

Compatible Accessories

• Mastervolt SmartRemote
• Mastervolt EasyView 5 system monitor
• CZone Touch 5 display
• CZone Touch 10 display
• Mastervolt-to-CZone or NMEA 2000 adapter cable
• Mastervolt six-metre battery-temperature sensor
• Mastervolt 15-metre battery-temperature sensor
• Compatible MasterBus network cables and terminators

Alternate Part Numbers

• Mastervolt product code: 35513000
• Formatted reference: 355-13-000
• Product model: CombiMaster 12/3000-160
• Voltage configuration: 12V DC / 120V AC
• Similar 230V model: 35013000 — not interchangeable
• Similar 24V model: 35523000 — not interchangeable

Parts Desk Insight

The “3000” in the model name refers to its inverter class, but Mastervolt rates this unit for 2,600 watts of continuous output at 40°C. Its major advantage is its short-duration capacity: it can supply 4,500 watts for 30 seconds and 6,000 watts for five seconds, making it well suited to compatible pumps, compressors and appliances with demanding startup loads.