AC Master 12/700 (230V)

Mastervolt offers a complete range of inverters from 300 watt to 40 kwatt in AC Master, Mass Sine and Mass Sine Ultra models. The AC Master is ideal for small and medium-sized applications, while Mass Sine and the advanced Mass Sine Ultra inverters are mainly intended for larger systems and for professional purposes. Mastervolt offers inverters for 230V/50Hz as well as 120V/60Hz (American voltage).

AC Master sine wave inverters

With a compact, lightweight and silent AC Master you can easily convert the voltage of a 12 or 24 V battery into 230 V/50 Hz AC current the same way you would at home or work. From microwave to hairdryer, DVD player to electrical tools, laptop to flatscreen; the pure sine wave preserves your equipment without disruption, humming or lines on the TV screen, while ensuring a longer lifespan of all connected equipment and saving you the costs of all those adapters.

Simple and safe to connect

The inverters benefit from robust connection technology with a cable and plug & play inlet.

Efficient use of batteries

The high conversion efficiency and automatic no-consumption economy mode ensure a longer lifespan for your batteries.

High peak loads for start-up

The AC Master sine wave inverters can supply up to 200 % capacity for equipment that requires a short boost of extra power when starting up.

No humming with HF technology

Our use of high-frequency switch technology means you can say goodbye to humming transformers and hello to efficiency. Mastervolt inverters are also small and lightweight to ensure easy installation.

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General specifications
Output voltage (± 5%) 230 V - 50 Hz (± 0.1%)
Output waveform true sine
Nominal battery voltage 12 V
Continuous power at 40 °C / 104 °F, cos phi 1 600 W
Continuous power at 25 °C / 77 °F, cos phi 1 750 W
Peak load 1200 W
AC connection fixed connection
Efficiency 90 %
Recommended battery capacity ≥ 150 Ah
Dimensions, hxwxd 275 x 155 x 75 mm
10.8 x 6.1 x 3.0 inch
Weight 2.7 kg
6.0 lb
Approvals CE, E-mark, ABYC A-31
Technical specifications
Technology HF switch mode
Low battery voltage, switches off at 10 V, ± 0.5 V
Low battery voltage, switches on at 12 V, ± 0.5 V
High battery voltage, switches off at 15.3 V, ± 0.5 V
High battery voltage, switches on at 14.2 V, ± 0.5 V
Max. ripple on DC (battery) 5% RMS
Input current (nominal load) 64 A
No-load power consumption (ON mode) 0.75 A – 9 W
No-load power consumption (energy saving mode) 0.37 A - 4.5 W
Min. DC fuse (slow blow) 100 A
Min. cable size 25 mm²
Harmonic distortion typical < 3%
Cos phi all power factors allowed
Temperature range (ambient temp.) -25 °C to 60 °C, derating > 25 °C
-13 to 140 °F
Sound level 53 dBA at 1 mtr
Protection degree IP23
Protections over temperature, over load, short circuit, high/low battery voltage
Cooling natural/forced
MasterBus compatible no



AC Master 12/700 (230V)

RRR type approval


User manuals

AC Master 12/700 (230V)

User's manual AC Master 12/700-230V and 24/700-230V (English)


Product notifications

AC Master 12/700 (230V)

Mass Sine CZone™ Configuration Instructions