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Rea Magnet Wire Formvar SW128X365HFJR Heavy Build Rectangular Magnet Wire, 0.128" T x 0.365" W, Copper, 24" Reel (245)

ID: SW128X365HFJR Mfr ID: SW128X365HFJR
Manufactured by: Rea Magnet Wire
Heavy build designed for continuous operation at 105 deg C, Formvar was one of the first magnet wire insulations based on synthetic materials. Today, Formvar is still widely used in oil-filled transformers as well as demanding cryogenic applications. Proven performance in oil-filled applications.
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  • Brand name :  Rea Magnet Wire
  • Trade Name :  Formvar
  • Series :  FORMPC-HB-S
  • Item Name :  Magnet Wire
  • Short Desc :  H FORMVAR 128X365 REA 24"RL/245
  • Packaging :  24" Reel (245)
  • UNSPSC :  26121509

Rea Formvar heavy build is a film insulation composed of modified polyvinyl acetyl resins. Designed for continuous operation at 105 deg C, Formvar was one of the first magnet wire insulations based on synthetic materials.

Design & Construction
Material Copper 
Color Natural 
Insulation Material Polyvinyl Formal 
NEMA Rating MW 18-C 
Shape Rectangular 
General Features
Type Heavy Build 
Standards IEC 60317-17 
Environmental Condition
Temperature Rating 105  deg C
Physical Properties
Thickness 0.128  Inch
Wire Size 0.128 Inch x 0.365 Inch 
Reel Diameter 14  Inch
Reel Hub Diameter 1.536 Inch 
Reel Weight 271  lb
Reel Width 6 Inch 
Width 0.365  Inch

Rea Magnet Wire Formvar SW128X365HFJR Heavy Build Rectangular Magnet Wire, 0.128" T x 0.365" W, Copper, 24" Reel (245) Specification Sheet 

Rea Magnet Wire Formvar SW128X365HFJR Heavy Build Rectangular Magnet Wire, 0.128" T x 0.365" W, Copper, 24" Reel (245) Safety Data Sheet (SDS) 

Features :

  • Resistant to mechanical and winding abuse due to superior flexibility and abrasion resistance
  • Performs well in in-line flattening processes
  • Compatible with most varnishes and impregnation compounds
  • Retains insulating properties when exposed to cryogenic temperatures
  • Compatible with transformer oils
  • Excellent hydrolytic stability

Applications :

  • For Oil-Filled Transformers, Superconducting Coils for Cryogenic Applications and Motors