Power Distribution & Controls Functional Devices (RIB) Functional Devices, Inc. has been designing and manufacturing quality electronic devices in the United States of America since 1969. Visit Functional Devices (RIB) ' Your Shopping CartBusiness Hours Monday – Friday: 7am – 4pm Having trouble identifying or finding a part? Call (802) 655-7090 or click here to complete our product finder form, we can help! Join Our Mailing List Get the latest information on promotions, products and events sponsored by Walsh. Name First Last Email* Customer Type* Commercial/Industrial Residential NameThis field is for validation purposes and should be left unchanged.