Class 220 Polyester (Amide)(Imide) Overcoated with Polyamideimide Square Aluminum Wire

Class 220 Polyester (Amide)(Imide) Overcoated with Polyamideimide consists of a square aluminum conductor insulated with a combination of polyester, amide, and imide resins, with an additional overcoat of polyamideimide.

Insulating Material: The conductor shall be coated with a dual film. The underlying coating is based on polyester (amide)(imide) resins. The superimposed coating is based on polyamideimide resins.

Dimensions of Square Bare Wire

Heavy and Quad Film-Insulated Square Magnet Wire Increase in Dimensions Due to Film Coating

Square AWGSize	Bare Wire Dimensions			Radii (±25%)Nominal	Heavy		Quadruple
					Minimum Increase	Maximum Overall	Minimum Increase	Maximum Overall
	Minimum	Nominal	Maximum
1	7.275	7.348	7.422	1.00	0.080	7.549	0.127	7.600
2	6.477	6.543	6.609	1.00	0.080	6.736	0.127	6.787
3	5.768	5.827	5.885	1.00	0.080	6.012	0.127	6.063
4	5.138	5.189	5.240	1.00	0.080	5.367	0.127	5.418
5	4.575	4.620	4.666	1.00	0.080	4.793	0.127	4.844
6	4.074	4.115	4.155	0.80	0.080	4.282	0.127	4.333
7	3.630	3.665	3.701	0.80	0.080	3.828	0.127	3.879
8	3.231	3.264	3.297	0.80	0.080	3.424	0.127	3.475
9	2.878	2.906	2.934	0.67	0.080	3.061	0.127	3.112
10	2.563	2.588	2.614	0.67	0.080	2.741	0.127	2.791
11	2.278	2.304	2.329	0.50	0.080	2.456	0.127	2.507
12	2.027	2.052	2.078	0.50	0.080	2.205	0.127	2.256
13	1.803	1.829	1.854	0.40	0.080	1.981	0.127	2.032
14	1.603	1.628	1.654	0.40	0.080	1.781	0.127	1.831

Adherence And Flexibility: No cracks visible in the film coating

Elongation:

Wire Size		Bare or Film- Insulated
MW Specification		18, 36, 64
Square andRectangular	T ≥0.049”	15
	T < 0.049”	15

Heat Shock: No cracks visible in the film coating after 10% elongation followed by conditioning at 240ºC

Dielectric Breakdown: Applicable to Heavy film-insulated sizes having a thickness of less than 1.25 mm or a width greater than 12.5 mm, or a width-to- thickness ratio greater than 5:1, and all Quad.

Film Insulation	Minimum Breakdown Voltage
	Any Three of Four Values	Fourth Value
Heavy	1500	500
Quad	2500	900

The combination of Class 220-rated polyester with amide and imide components, overcoated with polyamideimide, provides a robust and reliable solution for various electrical and industrial uses.