A:Answer Hello Dn1142,
Thank you for reaching out and raising your question about the Samsung - 30"" Microwave Combination Wall Oven with Steam Cook and WiFi - Stainless steel. I understand you want to know the power source of the product. We are here to help you.
To answer your question, you need to use a dedicated 240-volt, 40-amps, AC, fused electrical circuit for this microwave combination wall oven.
You can also check this link https://image-us.samsung.com/SamsungUS/home/home-appliances/ranges/pdf/specsheet-NQ70M6650DS-051518.PDF for the specifications of the product.
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Your reference number is 1144346977.
-Noraina