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AC Master 12/300

Mastervolt sine wave inverters have proven themselves under the most extreme conditions for over 25 years. Our inverter family consists of AC Master, Mass Sine and Mass Sine Ultra models, ranging from 300 watt up to 40 kW. 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. 

With the affordable AC Master you can easily convert the voltage of a 12 or 24 V battery into reliable 230 V 50/60 Hz grid power, the same way you would at home or work. From microwave to hairdryer, DVD player to electrical tools, laptop to flatscreen.

All AC Master models will offer the same quality, reliability and technology that you’ve come to expect from Mastervolt. Ease of operation, fast installation and safe to use, the AC Master family ensures that you’re well prepared for your travels. The application of high frequency switching technology removes any annoying humming and buzzing sounds. The pure sine wave also ensures the functioning of even the most sensitive equipment. In addition, the AC Master will save the cost of many adapters. Ideal for recreational and semi-professional applications.

Features

  • Complete value for money inverter range for recreational and semi-professional use.
  • Pure sine wave prevents glitches or failing appliances.
  • High efficiency for improved performance and extended runtime.
  • Easy installation, saving valuable installation time.
  • Lightweight, space-saving design.
  • Automatic, reliable and safe operation; protected against overload, over-temperature, reverse polarity and high/low battery voltage.
  • Temperature-controlled fan ensures low noise at low power, while providing full power under the most demanding conditions.
  • IP21/23 for marine use, E-mark certified for mobile applications.
  • Automatic, adjustable power saving for extended usage time.
  • Optional remote control INVR-1 can instantly switch off inverter and any connected devices (available from 700 watt models).
  • Plug connection for all models, plus direct connection for the 2500/3500 Watt models.

In addition, the 2500/3500 Watt models offer

  • Combine multiple units to obtain high power single phase and 3-phase systems.
  • Integrated transfer system, switches automatically between AC power sources. Added comfort without complexity. 

Applications

Both recreational and semi-professional use, where grid power varies or is unavailable. Can be used for lighting, appliances, electric cooking and power tools for example. For (mobile) applications in your home, office or service vehicle, or during your holidays. 

Product code: 28010300
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Specifications

General specifications
Output voltage 230 V - 50 Hz (± 0.1%)
Output waveform true sine
Nominal battery voltage 12 V
Recommended battery capacity ≥ 60 Ah
Continuous power at 25 °C / 77 °F, cos phi 1 300 W
Continuous power at 40 °C / 104 °F, cos phi 1 250 W
Peak load 600 W
AC connection universal
Efficiency 90 %
Display/read-out LED display
Dimensions, hxwxd 210 x 130 x 60 mm
8.3 x 5.1 x 2.4 inch
Weight 1.16 kg
2.6 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 16 V, ± 0.5 V
High battery voltage, switches on at 14.5 V, ± 0.5 V
Max. ripple on DC (battery) 10 % RMS
Input current (nominal load) 22.5 A
No-load power consumption (ON mode) 0.58 A – 7 W
No-load power consumption (energy saving mode) 0.33 A - 4 W
Minimal DC fuse (slow blow) 2x 40 A
Minimal cable size 1,5 mtr DC kabel standaard in levering
Harmonic distortion typical < 6 %
Cos phi all power factors allowed
Temperature range (ambient temp.) 0 °C to 40 °C, derating power ≥ 40 °C
32 to 104 °F
Switch off at (auto recover after cooling down) 50 °C
122 °F
Protection degree IP23
Protections over temperature, over load, short circuit, high/low battery voltage
Cooling natural/forced
MasterBus compatible no
 
 

Downloads

Certificates

AC Master 12/300

RRR type approval

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Certificates

AC Master 12/300

EU DoC AC-Master 300 & 500

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Certificates

AC Master 12/300

RMRS Certificate Inverters

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User manuals

AC Master 12/300

Manual AC Master 12/300, 12/500, 24/300, 24/500 (English)

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Product notifications

AC Master 12/300

Mass Sine CZone™ Configuration Instructions

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3D product drawings

3D-drawing AC Master 12/300, 12/500, 24/300 & 24/500 (zipped STEP file)

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