What is encore wire used for? A low-cost manufacturer of copper electrical building wire and cable, Encore Wire produces NM-B cable, a sheathed cable used to wire homes, apartments, and pre-fabricated housing, and UF-B cable, an underground feeder cable for outside lighting and remote residential building connections.How do i contact encore direct for an inquiry? The was designed with you in mind, and we want to know if there is a way we could serve you better. This Contact form is for General Inquires not Claims related inquiries. Please do not communicate HIPAA information via this form. For claims inquiries, please contact Encore direct at (888) 446-5844.Why enencore wire corporation? Encore Wire Corporation is committed to improving the quality of life in the communities where we operate through financial contributions and employee volunteerism...How do i contact encore for hipaa information? Please do not communicate HIPAA information via this form. For claims inquiries, please contact Encore direct at (888) 446-5844.