The Mastervolt CombiMaster range combines an intelligent 3 step battery charger providing fast and safe charging, along with a reliable true sine wave power inverter to provide AC output to operate household items. The unit can be connected up to shore power or generators for charging and the AC output will automatically switch between mains and inverter mode. The inverter/charger is built to be reliable and user friendly, with easy operation through MasterBus, CZone and NMEA 2000 communications, and with a wide range of control panels available.

The CombiMaster 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.

Specifications sine wave inverter

Nominal DC voltage: 24 V (20.4-32 V)

Output voltage: 230 V

Output frequency: 50/60 Hz (configurable)

Output waveform: true sine

Continuous power at 40 °C / 104 °F, cos phi 1: 2000 VA / 1600 W

Peak power (30 sec): 3000 VA / 2400 W

Surge power (5 sec): 4000 VA / 3200 W

Max. efficiency: 93 %

Battery no-load power consumption: 30 W (on mode) / < 1 mA (off mode)

Energy saving mode consumption: 10 W

Synchronise with mains: yes

Specifications battery charger

Input voltage range: 170-280 V

Max. input current: 8 A (adjustable)

Max. charge current at 40 °C / 104 °F: 40 A at 28.5 V (configurable)

Battery temperature sensor: yes, included

Battery voltage sense: automatic compensation

Specifications transfer system

AC input: 25 A (switched)

AC output: 33 A

AC input fuse: yes

Transfer speed: 10 ms

Transfer voltage range: wide: 90-280 V / narrow: 170-280 V

Transfer frequency range: 40-65 Hz

General specifications

Galvanisedanic isolation: yes

Display/read-out: LED display

Dimensions, hxwxd: 371 x 284 x 155mm (14.6 x 11.2 x 6.1 inch)

Weight: 6.9 kg (15.2 lb)

Compliance: CE, E-mark, AZ/NZS

Technical specifications

Charge characteristic: IUoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable

Recommended battery capacity: 120-320 Ah (based on gel batteries, may differ for other types)

Ground relay: yes, configurable by means of mechanical jumper

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, supports AC input with power from the battery

Power Sharing: yes, allows you to select AC Input fuse setting

MasterBus compatible: yes

CZone / NMEA 2000 compatible: yes

Key Features

Most compact and lightweight Combi in its class

Reliable, hum-free and longer operation from your batteries

Starts even the heaviest and most sensitive loads

Intelligent 3-step+ battery charger for faster and safer charging

Automatic switching between mains and inverter mode

Power Assist prevents blown mains fuses

Generator compatible

Integrated CZone, MasterBus and NMEA 2000 communication

Quick installation with heavy duty connections

E-mark certified

NMEA 2000 compatible via 3rd party multifunctional display