6640 NMN Insulation Paper Nomex® Paper

6640 NMN insulation paper or flexible insulation paper is a soft composite insulation material composed of two layers of Dupont ® Nomex® paper and one layer of polyester film. Chengrui Insulation supplies NMN insulation paper both F class and H Class for medium and high-temperature motor insulation systems, dry-type transformers, and electrical equipment insulation parts. Typical users include motor OEMs, transformer manufacturers, winding workshops, and insulation component processors. 

In the field of electrical insulation, "aramid insulation paper composites" primarily refer to flexible composite materials produced by laminating multiple layers of aramid paper with functional films (such as polyester or polyimide films).

1. NMN composite material— Economical Class H/F Insulation

Structure: Composed of two layers of aramid paper sandwiching a layer of polyester film (PET) (Aramid - Mylar - Aramid).

Characteristics:

Thermal Class: Typically Class F (155°C) or Class H (180°C), depending on the adhesive used.

2. NHN (or NKN) composite material — Premium Class H Insulation

Structure: Composed of two layers of aramid paper sandwiching a layer of polyimide film (PI, commonly known as Kapton).

Characteristics:

Thermal Class: A stable Class H (180°C) or higher.

Product name:6640 NMN Insulation Paper
Thickness:0.15mm-0.4mm

Width:914 mm or customized

Color: White with orange line or yellow line

Insulation Class: Class F (155°C) / Class H (180°C) 

6640 NMN Insulation Paper Features

1. Superior thermal properties and mechanical properties.

2. Tearing resistance as well as the excellent dielectric strength from polyester film.

6640 NMN Insulation Paper Applications

NMN insulation paper is mainly used as a slot liner, slot closure, phase-to-phase, and turn-to-turn insulation in low or medium voltage electrical motors of Class F (155℃) or Class H (180℃) insulation system, also, it's also used as interlayer insulation in transformers and other electrical machines and appliances.

6640 NMN Insulation Paper Specifications

Chengrui Insulation provide NMN in rolls, sheets, and customized slit widths according to the customer's production process. We can assist with thickness selection, insulation class confirmation, sample preparation, packing details, and export documentation for bulk orders.