DMD electrical insulation laminate is an insulating material used in the electrotechnical industry for the insulation systems of electric machines. The name DMD comes from the construction of the material: Dacron – Mylar – Dacron, which consists of two layers of electrical insulation paper bonded with PET polyester film.

Thanks to this construction, the laminate combines very good mechanical properties of electrical insulation paper with high dielectric strength and thermal stability of the PET film.

The material is primarily used in the production and regeneration of electric motors, transformers, and generators. DMD laminate is used as slot insulation, electrical insulation spacers, and interphase insulation in the windings of electric machines.

DMD electrical insulation laminates belong to thermal class F (155°C), allowing them to operate at elevated temperatures found in electrical devices.

Applications

• insulation of electric motor windings

• insulation of transformers

• slot insulation in electric machines

• electrical insulation spacers

• interphase insulation

• electrotechnical equipment

Key Features

• very good electrical insulation properties

• high mechanical strength

• good material flexibility

• dimensional stability

• thermal class F (155°C)

Frequently Asked Questions (FAQ)

What is DMD electrical insulation laminate?

DMD is an electrical insulation laminate consisting of two layers of electrical insulation paper and PET polyester film. The material is used for insulating the windings of electric motors and transformers.

What is DMD laminate used for?

DMD laminate is used in:

• slot insulation of electric motors

• insulation spacers between winding layers

• insulation of transformers

• electrotechnical equipment.

What is the operating temperature of DMD laminate?

DMD laminates belong to thermal class F (155°C), which means they can operate in electrical devices at elevated temperatures.

How does DMD differ from NMN?

DMD uses electrical insulation paper and PET film, while NMN laminates contain Nomex aramid paper, allowing them to operate at higher temperatures.