Selecting the correct step down transformer

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A step down transformer converts 240 volts down to 110 volts (or 115v & 120v) to allow your US appliance to run in Australia. Selecting the correct Step down Transformer for your USA or Japanese Appliance is an important process and requires you looking at the below 5 questions first: 1. What is the total watts used by appliances to be connected to the Transformer? To determine which stepdowns transformer you will need you need to decided based on how many watts your device uses. For example a Playstation 3 uses 380 Watts so you need a 500 watt stepdown transformer. 2. Does your appliance have a motor*? If a motor is included then you need to add 20% extra buffer to the power usage (ie add 20% to watt total watts) 3. Does your appliance have a mechanical timing device? If so, how critical is this timing device? If a timing device is included the speed of the device may change due to the frequency change, 60Hz to 50Hz 4. Do you know the Amps of your device? - is so you can calculate the watts required: Calculated as = Amps x 110v (eg 5 Amps x 110 = 550 watts) 5. Do you wish to use multiple appliances from one stepdown? Check total watts of all devices this must be less than the VA rating of the stepdown & get a USA Powerboard (courtesy of tortech.com.au)
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