Waeco MyFridge MF-6W Specifications download pdf (Page 86)

Minimal power requirements for some electric appliances

Device Power rating Quality of the output voltage

Coffeemaker (filter) 800 – 1500 watts modified sine wave voltage

Coffeemaker (pads) 1200 – 1600 watts pure sine wave voltage

Espresso machine 1200 – 1600 watts pure sine wave voltage

Microwave oven 1000 – 1600 watts modified sine wave voltage

Toaster 1000 – 1500 watts modified sine wave voltage

Water kettle 1000 – 1500 watts modified sine wave voltage

Reading lamp 50 – 100 watts modified sine wave voltage

Energy-saving bulb 10 – 20 watts pure sine wave voltage

Fluorescent tube 50 – 100 watts pure sine wave voltage

Audio/video device 100 – 200 watts pure sine wave voltage

Notebook computer 100 – 200 watts modified sine wave voltage

Power drill/circular saw 500 – 1500 watts modified sine wave voltage

Vacuum cleaner 1000 – 1600 watts modified sine wave voltage

Electric toothbrush 50 watts pure sine wave voltage

Appliance

12 V › 230 V

141Contents, specifications and availability are subject to change serving the technical improvement.140 Contents, specifications and availability are subject to change serving the technical improvement.

How much power does the

inverter need to have?

The size of the inverter depends on the application it is being used

for. For example, it takes a more powerful inverter to run a coffee-

maker than it does to operate a latop. The most power-intensive

gadget determines the power rating of the inverter. You should also

consider the starting current of the devices. Compressor refrigerators,

for instance, can consume up to ten times more than their nominal

power consumption.

WAECO SinePower or PerfectPower – which series is the right one for you?

A PerfectPower inverter with sinusoidal output voltage is absolutely

fine for many applications. For more power-intensive appliances, you

should opt for a PerfectPower high-performance inverter.

Sensitive high-tech devices place higher demands on the quality of

the supply voltage. They require a pure sine wave voltage. In these

cases it is absolutely essential to use a SinePower sine wave

inverter.

Here again, the most demanding electrical appliance determines the

choice of the inverter. A single device on board requiring a pure sine

wave voltage is reason enough for you to opt for a sine wave

inverter.

InvertersProduct informationINVERTERS

The demand for voltage inverters is constantly increasing, and so is our product range. WAECO offers inverters for all

applications. But which one is the right one for you? To help you find your way around the WAECO inverter programme, here

are answers to the questions most frequently asked by our customers.

Decision aid

Answers to frequently asked questions

Example:

› The largest electrical appliance on board is a

toaster with a wattage of 1200 W.

› The technically most demanding electrical appliance

is an electric toothbrush with a wattage of 50 W.

Our recommendation:

A sine wave inverter with a capacity of at least

1200 watts

Alternatively:

An inverter of at least 1200 watts for the toaster

plus a 150-watt sine wave inverter for the

toothbrush

What size battery do I need?

If you expect high performance from your inverter, you will need

a high-capacity battery. We recommend a minimum capacity of

15 amp-hours per 100 watts inverter output. This ensures that the

large currents can flow without voltage drop, thereby preventing

excessive strain on the battery.

It’s not only the short-time peak requirements – e.g. that of a micro-

wave oven – that count. When calculating the battery capacity don’t

forget to take all the small electric consumers into account that are

switched on for longer periods of time.

Multiply the amperage of every single appliance with the number of

hours it is usually switched on. This will give you the approximate

battery capacity in amp-hours (Ah). To calculate the total amount

drawn from the battery, simply add up the amounts for all electrical

appliances and add a generous buffer.

Example:

Microwave oven

(1500 W) 150 A x 0.1 h = 15.0 Ah

Lamp 15 A x 2.5 h = 37.5 Ah

TV set 3 A x 2.0 h = 6.0 Ah

... ...

Total capacity drawn 58.5 Ah

Our recommendation:

A battery with a capacity of 200 Ah, 30% of which

would be utilised on a daily basis in our example.

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Waeco MyFridge MF-6W Specifications Page 86

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