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Single Formvar Round Magnet Wire

Formvar is a synthetic enamel composed of polyvinyl acetal and phenolic resins.Formvar’s hot oil resistance sets it apart from all other magnet wire insulations. The flexibility, adhesion and abrasion scrape resistance of Formvar film is excellent. Its electrical properties are very good and it is resistant to common solvents. While Formvar has been replaced in many applications, Formvar continues to be the recommended film insulation most commonly used in oil-filled transformers.Typical ApplicationsOil-filled transformersMotorsRandom wound coilsSolenoids

Product #: MWRD21SF

Specifications

UL Listing UL Recognized Class 105 Product
Mil-Spec No. MW 15-C/A
AWG Size 21
Min. Bare Wire Diameter 0.0282 in
0.716 mm
Nom. Bare Wire Diameter 0.0285 in
0.724 mm
Max. Bare Wire Diameter 0.0286 in
0.726 mm
Min. Increase in Diameter Due to Film Coating 0.0011 in
0.028 mm
Min. Overall Diameter of Film-Coated Wire 0.0293 in
0.744 mm
Max. Overall Diameter of Film-Coated Wire 0.0303 in
0.770 mm