Electrical Insulation Board Class H Dependable Insulation For Electrical

MOQ： 1000kgs
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Payment Terms	T/T
Supply Ability	200000kgs per month
Delivery Time	30 working days
Packaging Details	pallet
Density	1.8-2.0 g/cm3
Water absorption	≤ 22mg
Tensile strength(MD)	≥300MPa
Relative Permittivity (50Hz)	≤ 5.5
Dielectric dissipation (50Hz)	≤ 0.04
Application	Used in electrical, electronic, and mechanical fields
Electric strength perpendicular to laminations (at 90℃±2℃ in oil), 1mm in thickness	≥ 14.2 kV/mm
Breakdown voltage parallel to laminations (at 90℃±2℃ in oil)	≥ 35kV
Insulation resistance (after 24 immersion in water)	≥ 5.0 × 10^4 MΩ
Flexural strength perpendicular to laminations (normal)	≥ 380MPa
Model Number	3250
Place of Origin	China

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Product Details
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Product Specification


Payment Terms	T/T	Supply Ability	200000kgs per month
Delivery Time	30 working days	Packaging Details	pallet
Density	1.8-2.0 g/cm3	Water absorption	≤ 22mg
Tensile strength(MD)	≥300MPa	Relative Permittivity (50Hz)	≤ 5.5
Dielectric dissipation (50Hz)	≤ 0.04	Application	Used in electrical, electronic, and mechanical fields
Electric strength perpendicular to laminations (at 90℃±2℃ in oil), 1mm in thickness	≥ 14.2 kV/mm	Breakdown voltage parallel to laminations (at 90℃±2℃ in oil)	≥ 35kV
Insulation resistance (after 24 immersion in water)	≥ 5.0 × 10^4 MΩ	Flexural strength perpendicular to laminations (normal)	≥ 380MPa
Model Number	3250	Place of Origin	China
High Light	Class H electrical insulation board ，Dependable electrical insulation board ，Electrical insulation board for applications

Product Description:

The Epoxy Glass Laminated Sheet utilizes specially treated non-alkali glass fiber cloth as the reinforcement substrate and high glass transition temperature (Tg) epoxy resin as the adhesive, manufactured through a hot-pressing process under high temperature and pressure. This material maintains excellent mechanical strength at elevated temperatures and demonstrates stable electrical performance under high humidity conditions. Rated as Class H heat-resistant insulation material, it is widely used in power generation equipment, high-voltage electrical apparatus, rail transportation, and electronic communication fields that demand high reliability.

Advantages:

Exceptional Thermal Resistance and Mechanical Performance
Utilizing high-Tg epoxy resin, it qualifies as a Class H insulation material. It not only operates reliably under long-term high-temperature conditions but also maintains excellent mechanical strength and dimensional stability, resisting softening or deformation, making it suitable for high-temperature and high-load applications.
Outstanding Electrical Insulation Stability
With high dielectric strength and low dielectric loss, it demonstrates remarkable stability even in high-temperature and high-humidity environments, making it an ideal insulation material for high-voltage applications.
Excellent Environmental Tolerance
The dense structure of the epoxy resin system results in low water absorption, providing effective resistance to a wide range of chemicals, solvents, and oils. This significantly extends its service life in harsh environments.
Superior Machinability and Adaptability
It offers excellent mechanical processability, allowing for easy fabrication into complex-shaped components. This ensures convenient processing and strong adaptability.

Technical Parameters:

Attribute	Value
Density	1.80~2.00 g/cm3
Water absorption (3mm in thickness)	≤ 22mg
Flexural strength perpendicular to laminations (normal)	≥ 380MPa
Tolerances on thiness	1±0.18mm / 2±0.28mm
Tensile strength	≥ 300MPa
Dielectric dissipation (50Hz)	≤ 0.04
Relative Permittivity (50Hz)	≤ 5.5
Electric strength perpendicular to laminations (at 90℃±2℃ in oil), 1mm in thickness	≥ 14.2 kV/mm
Insulation resistance (after 24 immersion in water)	≥ 5.0 × 10^4 MΩ
Breakdown voltage parallel to laminations (at 90℃±2℃ in oil)	≥ 35kV

Applications:

Power Generation and High-Voltage Electrical Equipment
Used as key insulation components in large generators, high-voltage switches, and transformers, ensuring stable operation and mechanical robustness under high temperatures and voltages.
Rail Transportation
Applied in core equipment such as locomotive traction motors and control systems, providing highly reliable insulation and structural support that meets stringent environmental requirements.
Electronic Communications
Serves as substrate material for high-end PCBs in high-frequency communication equipment and power amplifiers, delivering stable dielectric performance and mechanical support.
Industrial Instruments and Machinery
Widely used in test fixtures, chip test sockets, and wear-resistant structural components, meeting industrial needs for high precision, insulation, and integrated strength requirements.

Company Details

Bronze Gleitlager

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from Quality China Factory

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Business Type:

Exporter,Trading Company,Seller 
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Year Established:

2006 
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Total Annual:

2million-3million
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Employee Number:

>100 
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Ecer Certification：

Verified Supplier 

UN.Tex (Dalian) Co., Ltd. —To be one of your best sellers in ChinaEstablished in 2006, Rooted in a Charming Coastal City Since its founding in 2006, UN.Tex (Dalian) Co., Ltd. has been deeply rooted in the beautiful port city of Dalian. This is not only our home but also the hub that connects ... UN.Tex (Dalian) Co., Ltd. —To be one of your best sellers in ChinaEstablished in 2006, Rooted in a Charming Coastal City Since its founding in 2006, UN.Tex (Dalian) Co., Ltd. has been deeply rooted in the beautiful port city of Dalian. This is not only our home but also the hub that connects ...

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UN.Tex (Dalian) Co.,Ltd
Softview Center Room A-705, No.1A-4 Softpark Road, Dalian, China 116023
https://www.un-tex.com/

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