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Mass Sine 12/800 (230V/50Hz)

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).

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.

High peak power during start up

The Mastervolt sine wave inverter can provide up to 200 % surge capacity to equipment that requires extra power during start up.

Efficient use of batteries

A high efficiency when inverting and an automatic economy mode when there is no consumption gives you longer use of your batteries.

Simple and safe to connect

The inverters feature robust connection technology, internal in the larger models and a plug & play socket with cable for the smaller models.

MasterBus compatible

Every Mass Sine inverter can be easily connected to a MasterBus network with only one cable and one connection. You can also choose central, local or remote monitoring, configuration and control of your system.

Product code: 24010800
download pdf


General specifications
Output voltage (± 5%) 230 V – 50 Hz (± 0.01 Hz)
Output waveform true sine
Nominal battery voltage 12 V
Recommended battery capacity > 100 Ah
Continuous power at 40 °C / 104 °F, cos phi 1 650 W
P30 power at 40 °C, cos phi 1 800 W
Peak load 1600 W
AC connection internal
Efficiency 92 %
Display/read-out LED display
Dimensions, hxwxd 325 x 220 x 111 mm
12.8 x 8.7 x 4.4 inch
Weight 3.9 kg
8.6 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 11 V, ± 0.5 V
High battery voltage, switches off at 15.5 V, ± 0.5 V
High battery voltage, switches on at 14.5 V, ± 0.5 V
Max. ripple on DC (battery) 5% RMS
Input current (nominal load) 73 A
No-load power consumption (ON mode) 470 mA – 5.6 W
No-load power consumption (energy saving mode) 65 mA – 0.8 W
Minimal DC fuse (slow blow) 100 A
Minimal cable size 25 mm²
Harmonic distortion typical < 5%
Cos phi all power factors allowed
Transfer system the Masterswitch and Systemswitch can be connected to all sine wave inverters
Temperature range (ambient temp.) -25 °C to 80 °C, derating > 40 °C
-13 °F to 176 °F
Sound level 48 dBA at 1 mtr
Protection degree IP23
Protections over temperature, over load, short circuit, high/low battery voltage
Cooling natural/forced
MasterBus compatible yes, using a MasterBus Inverter Interface or AC power analyser



Mass Sine 12/800 (230V/50Hz)

RRR type approval



Mass Sine 12/800 (230V/50Hz)

RMRS Certificate Inverters



Mass Sine 12/800 (230V/50Hz)

EU DoC Mass Sine C1


Drawings (dimensions)

Dimensions Mass cabinet C1 (zipped PDF and DXF file)


User manuals

Mass Sine 12/800 (230V/50Hz)

User's manual Mass Sine 12/800, 24/800


Product notifications

Mass Sine 12/800 (230V/50Hz)

Mass Sine CZone® Configuration Instructions



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