This Transformer W/Terms,115v Ultra is a genuine Bunn OEM replacement part. Part number 27644.1005 is used for certain commercial coffee equipment made by BUNN. This part will help repair specific issues you are having with Bunnomatic model ULTRA1, ULTRA2, Gourmet Ice Systems. Replace this part if BUNN or a service technician has instructed you to do so. Over time Electrical Control for Bunn ULTRA1, ULTRA2, Gourmet Ice Systems may need to be replaced because of normal wear and tear or if damage has occurred to the existing part. When replacing BUNN part #27644.1005 it is suggested that no power or water is connected to the machine and you are working in clean and non hazardous environment. Please be sure Transformer W/Terms,115v Ultra fits your specific needs.