Nomex Insulation Paper

Meta-aramid paper is calendared insulation paper which offers excellent dielectric strength and mechanical performance. It has good thermal behavior with UL 220°C for Electrical and 210°C for Mechanical as recognized by Underwriters laboratories.

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Description

Class f electrical nomex npn 6640 insulating insulated motor nmn insulating paper is a three-layer flexible composite material, produced by using F Class adhesive to adhere the polyester film with hot rolling DuPont NOMEX@ paper on both sides. It has excellent heat-resistant, electrical, mechanical and impregnating properties.

Class f electrical nomex npn 6640 insulating insulated motor nmn insulating paper has been approved by ROHS and REACH test.

Item		Unit	Requirement
Nominal thickness		mm	0.16	0.19	0.21	0.24	0.26	0.28	0.34
Thickness tolerance		mm	±0.02		±0.03		±0.04		±0.05
Grammage		g/m2	175±25	195±30	230±35	260±40	300±45	330±50	410±50
Film nominal thickness		um	75	100	125	150	175	190	250
Tensile strength	MD no bending		≥120	≥140	≥160	≥180	≥200	≥250	≥270

		N/10mm
	MD after bending		≥70	≥90	≥90	≥130	≥150	≥170	≥180
	TD no bending		≥80	≥90	≥100	≥110	≥120	≥150	≥170
	TD after bending		≥50	≥70	≥80	≥80	≥100	≥110	≥130
Elongation	MD		≥10
		%
	TD		≥8
Breakdown voltage	No bending		≥8		≥9			≥10
		KV
	After bending		≥7		≥8			≥9
Delamination		—	No Delamination, no bubble or other defects
Heat affected（220±2℃） 10min			No Delamination, no bubble, no adhesive flow
Long-term heat resistance			≥180
（temperature index TI）
Weight and area conversion		m2/Kg	5.58	4.66	4	3.5	3.11	2.92	2.34