Class 220 Polyester Overcoated with Polyamideimide Film-Insulated Square Copper Magnet Wire

Thermal Class: 220
Dimensions: Square: 1-14 AWG
Certificate: MW 38-C
Insulation thickness: Heavy and Quad

Class 220 Polyester Overcoated with Polyamideimide Film-Insulated Square Copper Magnet Wire

Polyester (Amide)(Imide) Overcoated with Polyamideimide Film-Insulated Square Copper Magnet Wire Thermal Class 220. The Square shape reduces winding spaces and enhances coil density, optimizing the performance of electrical equipment.

Table 1 Specifications

Insulation materialsFilm – lnsulation Types
Polyester Overcoated with Polyamideimide;
Polyester (lmide) Overcoated with Polyamideimide;
Polyester (Amide) Overcoated with Polyamideimide
Thermal Class220
DimensionsSquare: 1-14 AWG
Bare conductor:1.628mm-7.328mm
Heavy:1.781mm-7.549mm
Quad:1.831mm-7.60mm
CertificateMW 38-C
Insulation thicknessHeavy and Quad

Table 2 Periodic conformance tests

Thermoplastic flowMedian not less than 325ºC when tested as MW 37-C Heavy Build
SolubilitySpecimens immersed in xylene and 50/50 xylene/butyl Cellosolve shall not soften sufficiently to expose the bare conductor
Dielectric breakdown rated temperatureAverage not less than 75% of the value required at room temperature, when tested on MW 35-C Heavy build

Table 3 Properties

Adherence and flexibilityNo cracks visible in the film coating
ElongationBare or Film- Insulated MW Specification 18, 20, 36, 38, 64, 84
Heat shockNo cracks visible in the film coating after 15% elongation followed by conditioning at 240ºC
SpringbackNot greater than 5º
Dielectric breakdownNot less than the value in Heavy (500-1500) / Quad (900-2500)
Applicable to Heavy film-insulated sizes having a thickness of less than 0.049 in. (1.25 mm) or a width greater than 0.492 in. (12.5 mm), or a width-to- thickness ratio greater than 5:1, and all Quad. Other Heavy film-insulated sizes shall be tested in accordance with Foil Electrode Method
Heavy film-insulated sizes having a thickness 0.049 in. (1.25 mm) or greater; a width of 0.492 in. (12.5 mm) or less; and a width-to-thickness ratio not more than 5:1 shall have a dielectric breakdown voltage not less than in the table above after bending

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