Mastervolt 35523000 CombiMaster 24/3000-70 (120 V) Inverter/Charger

Mastervolt 35523000 CombiMaster 24/3000-70 (120 V) Inverter/Charger

Regular price $2,296.99 Sale price$1,851.05 Save $445.94
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Unmatched performance at an unprecedented price
Designed with the customer in mind and using the latest technology, the CombiMaster range is all about user-friendliness and reliability. But don’t let that friendly appearance misguide you: the powerful CombiMaster range drives even the heaviest and most sensitive loads with ease!

With the CombiMaster, power dips and failures belong to the past. The automatic AC transfer system switches between generator or mains and inverter output, ensuring a constant power supply. Its Power Assist function prevents tripping of the mains fuse in case you’re connected to a weak land line or small generator.

The CombiMaster range delivers unmatched performance and value for money. As you would expect from Mastervolt, the CombiMaster is completed with MasterBus, CZone and NMEA 2000 compatible communication, allowing for a broad range of monitoring and system integration options.

Remote Control and Monitoring options

  • MasterBus compatible via SmartRemote or EasyView 5 display.
  • CZone / NMEA 2000 compatible via Touch 5 or Touch 10 display.
  • NMEA 2000 compatible via 3rd party multifunctional display.


  • 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.

Mastervolt CombiMaster 24/3000-70 (120 V) Inverter/Charger:

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Specifications sine wave inverter
Nominal DC voltage 24 V (20.4–32 V)
Output voltage 120 V
Output frequency 60/50 Hz (configurable)
Output waveform true sine
Continuous power at 40 °C / 104 °F, cos phi 1 2600 W
Peak power (30 sec) 4500 W
Surge power (5 sec) 6000 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 90-140 V
Max. input current 25 A (adjustable)
Max. charge current at 40 °C / 104 °F 70 A at 28.5 V (configurable)
Battery temperature sensor yes, included
Battery voltage sense automatic compensation


Specifications transfer system
AC input 30 A (switched)
AC output 55 A
AC input fuse yes
Transfer speed 10 ms
Transfer voltage range wide: 70–140 V / narrow: 90–140V
Transfer frequency range 40-65 Hz


General specifications
Galvanic isolation yes
Display/read-out LED display
Dimensions, hxwxd 448 x 284 x 155 mm
17.6 x 11.2 x 6.1 inch
Weight 9.3 kg
20.5 lb
Compliance ABYC A31, UL1236, UL1741, SAEJ1171


Technical specifications
Charge characteristic UoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable
Recommended battery capacity 180-500 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

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