Ultimately, you don't need to get rid of that high-end refrigerator just because you're relocating overseas; bring it with you and save some money, courtesy of ACUPWR.
The following reference charts will assist anybody who is relocating with a domestic (USA and Canadian), high-end refrigerator/freezer to a country where the electricity standard is 220/240 volts and 50 Hz for AC line frequency. ACUPWR's ADC series step down transformers convert voltage from 220/240 volts down to the 110/120 required by your refrigerator, while also having a solution for the frequency change (Proper AC frequency is essential for your refrigerator to work reliably and efficiently).
Meanwhile, for anybody wishing to move their 220/240-volt, 50 Hz refrigerator/freezer to the USA or Canada there's ACUPWR's AUC step up transformers, which will convert 110/120 volts to 220/240 volts and has a solution for the frequency from 60 Hz to 50.
Open the links below to find information for the following brands:
Bertazonni, Bosch, Dacor, Fhiaba, GE Café and Profile Series, Gaggenau, Jenn-Air, and KitchenAid.
Marvel, Miele, Sub-Zero, Thermador, U-line, and Viking