Schaffner fn 9222 iec inlet filters general purpose schaffner emc fn 9222 3 06 a 3a inlet filter from the fn 9222 range that combines an iec inlet and a mains filter to provide an inlet filter that gives high performance and extreme reliabilty in a small form factor suitable for a wide range of general purpose useage such as portable equipment small to medium sized machines single phase power supplies and switch mode power supplies test and measurement equipment rack mounting equipment