TYPES OF ENAMELLED WIRES
BASE COAT Modified Polyester Polyesterimide Polyesterimide Polyamide imide Polyurethane
ENAMEL BASE      
TOP COAT     Polyamide imide    
Thermal Insulation Class "F"  155  C "H" 180  C "H+" 200   C "C" 220  C "F"  155  C
Specification IS : 13730 Part - 3 IS : 13730 Part - 8 IS : 13730 Part - 13 IS : 13730 Part - 7 IS : 13730 Part - 4
Colour Light to Dark Brown Light to Dark Brown Light to Dark Brown Light to Dark Brown Light Yellow
Application General Purpose FHP motors for hand FHP motors for hand Special Motors  Magnet Coils, Relays,
  Rotating and Static tools, Hermatic  tools, Hermatic  including Hermatic Transformers, Small
  Electrical Equip. etc. Applications, Ignition Applications, Special Motors FHP Motors,
    Coils & all Thermal  Purpose Motors & all Telecommunication &
    Class "H" Equipments Class "H" Equipments Electric Equipments.
Technical Data      
Cut Through 250  C 295  C 330  C 365  C 170  C
Heat Shock 180  C  200  C 210  C 250  C 150  C
Abrasion Resistance Good Very Good Excellent Excellent Good
Mechanical Properties Fair Very Good Excellent Excellent Good
Resistance to Good Excellent Excellent Excellent Very Good
Varnishes/Solvents      
Flexibility & Adherence Fails Very Good Excellent Excellent Good
Special Good Thermal & Resistance against Resistant against  Resistant against  Self solderable at 375 C
Characteristics & Dielectric Properties Refrigerants and Refrigerants & Chemicals, Refrigerants & Chemicals,  
    Transformer Oils. High Burnout Resistance High Burnout Resistance  
Remarks     Excellent Windability Excellent Windability