3240 High-Performance Insulation Board Class B With Phenolic Epoxy Resin

Price Negotiable

Price: basing on size and quantity

MOQ: 1000kgs

Delivery Time: 30 working days

Product Description

3240 High-Performance Insulation Board Class B With Phenolic Epoxy Resin

Product Overview

The 3240 High-Performance Insulation Board is manufactured from alkali-free glass fiber cloth and phenolic epoxy resin under high temperature and pressure. It offers excellent electrical insulation, mechanical strength, and a Class B (130°C) thermal rating. Suitable for demanding environments such as high humidity and oil immersion, this board is widely used in insulating structural components for motors, transformers, and other electrical equipment.

Technical Specifications

Color	Yellow
Shape	Board
Surface	Smooth/no Significant Defect
Temperature Index	120℃
Flammability	HB

Key Advantages

High Dielectric Strength: ≥14.2 kV/mm at 90°C in oil with low permittivity (≤5.5/50Hz), ensuring reliable insulation and low loss.
Durable & Strong: ≥1.8 g/cm³ density and robust structure for long-term mechanical reliability.
Smooth Surface: Defect-free finish prevents partial discharge and simplifies installation.

Industrial Applications

Ideal for Transformer Insulation: Combines exceptional parallel and perpendicular dielectric strength for reliable internal insulation.
Critical for Switchgear Applications: Offers proven mechanical durability and impact resistance in high-stress environments.
Essential for Busbar Supports: Delivers stable power distribution with low and consistent permittivity.