You have just arrived in Australia, or you have just imported an Appliance from Americia and found it is 110 volt, But over here we use 240 Volt !! then this is what you need, a 240 - 115V Isolated Stepdown Transformer.
You will need to know how many Watts the unit is rated at, this should be on the itme, it will state Voltage INPUT eg 110 volt and a Wattage or Curent Rating eg 100 VA or .2 amp. So check your rating and select the unit ABOVE your rating.
A WORD ON ISOLATION THIS MEANS THAT:
The primary (240V) & secondary (115V) are totally electrically isolated (Dieletric isolation). This is the safest way of making a mains voltage conversion. We recommend this type of transformer whenever the application is medical or medically related or where the secondary equipment is to be operated in or near water or high moisture environments.
Note the 240V earth is carried through to the 115V socket earth.
As some of the Higher powered units weigh upto 11 Kilos, Before we charge you, I will confirm a Price on Freight or postage for you. So you can order the unit you need, and then I will check your Freight charge, you can then cancel your order is needed.
50VA 240VAC to 115VAC Stepdown Transformer
This is the Baby Transformer. Its rated at 50VA, which is about 50 watts.
Its Not an Isolated type of transformer, Which does not mean the case is live but the input is connected to the output windings. In a normal transformer the input and output are not connected together and are reffered to as Isolated.