The Banner Engineering BFX77-240 surge suppressor for BF-series coils is rated 125–240 VAC, designed to absorb coil transients on Banner contactors. It is associated with the BF1801A-12060 coil family and is sometimes referenced as 81163 in distributor catalogs. Banner lists this model as discontinued by the manufacturer, and multiple sources categorize it as obsolete or no longer manufactured.
