MasterVolt SineWave Inverters
MasterVolt SineWave Inverters

MasterVolt SineWave Inverters

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Even under the most extreme conditions, the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary. With an MTBF of 180,000 hours at full capacity and 24/7 use, the Mass products are ideal for the toughest tasks and any situation that requires a reliable power supply.

Choosing a Mastervolt inverter is simple, determine your power needs, and your application and choose the perfect fit from a wide range of models.

High Efficiency
The high efficiency and automatic economy mode are designed to allow AC loads to work properly and ensure you many more hours of operation from your batteries. The application of high-frequency technology prevents annoying humming and zooming sounds. At the same time,e the high peak capacity ensures that the high inrush current required for electrical tools, for example, is seamlessly produced.

Mass Sine Ultra
With an AC capacity of 4000 W in one unit, the Mass Sine Ultra can satisfy even the greatest energy demands. As ten units can be switched in parallel or 3x3 in a three-phase configuration, the Mass Sine Ultra can supply a capacity of up to 40 kW. The inverter provides full power at 40 °C and works smoothly even in extreme conditions such as engine rooms and technical spaces. Like all Mass products, the inverter is supplied in a compact and robust casing. This inverter is the best choice if you are looking for an autonomous AC capacity of over 3 kW.

Latest Technology
The extremely efficient power electronics save volume and weight with minimal sound levels and a very low ripple voltage which extends the lifespan of your batteries. At the same time, digital technology prevents any annoying flickering and voltage fluctuations.

Make The Most Of Your Batteries
The Mass Sine Ultra is equipped with a dynamic battery voltage window. Taking into account the type of battery and current, this function ensures the inverter can supply AC longer without overtaxing the batteries

Mass Sine
Mastervolt’s Mass Sine inverters have been proving their value in the most extreme conditions for over 25 years.

Clear Indicators
The Mass Sine features easy controls on the device itself. As inverters are often built in, we also supply an effective remote control panel, the C4-RI. In addition, the Mass Sine can be controlled via its intuitive display, the EasyView 5, thanks to the integration of MasterBus communication using a MasterVolt Inverter Interface or AC Power Analyser.

Easy and Safe Connections
The Mass Sine inverters provide robust and professional connections for fast and safe installation.

Part Number 8186123 8186124 8186125 8186126
Nomimal DC voltage 12V 24V
Recommended Battery Capacity > 200 Ah > 80 Ah > 200 Ah > 500 Ah
Output Voltage 230 V (± 5 %) – 50 Hz (± 0.01 Hz)
P30 power at 40 °C, cos phi 1 2000 W 800 W 2500 W 5000 W
Continous power at 40 °C, cos phi 1 1800 W 650 W 2000 W 4000 W
Peak Load 4000 W 1600 W 5000 W 9000 W
Output waveform True Sine
AC Connection Internal
Efficiency ≥ 92 %
Display/Read-Out LED
Parallel Configuration No
3-Phase Configuration No
(H x W x D)
420 x 318 x 130mm
(16.5 x 12.5 x 5.1 inch)
325 x 220 x 111mm
(12.8 x 8.7 x 4.4 inch)
340 x 261 x 130mm
13.4 x 10.3 x 5.1 inch
470 x 315 x 254 mm
(18.5 x 12.4 x 10 inch)
Weight 9.7 kg (32.2 lb) 3.9kg (8.4 lb) 6 kg (13.7 lb) 19 kg (41.9 lb)
Approvals CE, E-Mark, ABYC A-31, RRR CE, E-Mark, ABYC A-31
Tecnhical Specifications
Technology HF Switch Mode
Max. Ripple on DC (battery) 5 % RMS
Input Current
(Nominal Load)
183 A 36A 68A 115 A
No-load Power Consumption (ON Mode) 480 mA - 6 W 240 mA - 5.6 W 200 mA - 5 W 250 mA - 6 W
No-load Power Consumption (Energy Saving Mode) 50 mA - 0.6 W 35 mA - 0.8 W 25 mA - 0.6 W
Minimal DC Fuse
(slow blow)
DC Fuse depends on the cable size
250 A 63 A 100 A 160 A
Minimal Cable Size 70 mm2 16 mm2 25 mm2 50 mm2
Harmonic Distortion Typical < 5 %
Power Factor Control All power factors allowed
Transfer System Masterwitch / Systemswitch compatible
Temperature Range (ambient temp.) -25 °C to 80 °C; > 40 °C derating / -13 °F to 176 °F; > 104 °F derating
Cooling Natural/Forced
Protection Degree IP23
Protections Over-temperature, overload, short circuit, high battery, low battery
MasterBus Compatible Yes, using a MasterVolt Inverter Interface or AC Power Analyser

After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.

Most orders are shipped within 2 - 5 Days

Shipping rates

Orders delivered to Australian Post Codes attract an $18.00 Flat Rate Shipping Charge* This excludes Bulky or Dangerous Goods

For Bulky Goods, Dangerous Goods and Remote areas.

If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

Should you have any queries or concerns about shipping, please don't hesitate to get in touch by clicking the support button on bottom right of the page.

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