3241 Semiconductor Epoxy Glass Fiber Laminate Sheet

3241 Semiconductor Epoxy Glass Fiber Laminate sheet is a specialized electrical insulation and corona protection material. It is manufactured using alkali-free glass fiber fabric as the base, impregnated with epoxy (or epoxy phenolic) resin containing conductive carbon black, and then dried and thermally pressed.

Why choose 3241 semiconductor laminate sheet?

High-voltage motors, transformers and other power equipment often work under high voltage, high temperature and continuous heavy loads. Corona discharge, insulation aging and structural deformation are the top causes of equipment damage and frequent shutdowns. As a dedicated corona-resistant and insulating solution, the 3241 semiconductor epoxy glass fiber laminate sheet perfectly solves these common industrial pain points. It delivers stable, long-lasting protection for high-voltage electrical systems and is widely trusted by global electrical equipment manufacturers.

Most ordinary insulation sheets struggle to withstand harsh high-voltage working conditions with weak corona-resistant performance and poor heat resistance. In contrast, the 3241 semiconductor board is engineered specifically for high-voltage scenarios. It balances outstanding corona resistance, sturdy mechanical performance, stable temperature tolerance and reliable dielectric properties, making it a go-to structural material for the production and maintenance of medium and large high-voltage electrical equipment.

Key Performance Benefits of 3241 Semiconductor sheet

1. Powerful corona-resistant Performance

Featuring a professional semiconductor resin layer, the 3241 semiconductor laminate sheet effectively suppresses and eliminates corona discharge inside high-voltage equipment. It reduces corona-induced equipment loss, prevents insulation breakdown and partial discharge faults, and supports steady, long-term operation of high-voltage electrical devices.

2. Strong Mechanical & Dielectric Stability

This semiconductor sheet boasts high mechanical strength, resisting deformation, cracking and damage during installation and long-term service. It also features excellent dielectric performance and stable insulation, which isolates circuits effectively, prevents electric leakage, and fully meets strict safety standards for high-voltage electrical equipment.

3. Reliable Wide-Range Heat Resistance

Rated from Class B to Class F temperature resistance, the 3241 semiconductor insulation sheet handles long-term working temperatures between 120°C and 155°C. It maintains stable physical and electrical characteristics under persistent high-temperature conditions, with no aging or performance degradation, perfectly adapting to the continuous high-load operation of power equipment.

Versatile Industrial Applications

The 3241 semiconductor sheet is an indispensable core component for medium and large high-voltage motors. It is commonly applied to motor slots, wedge washers, end washers and other key parts to provide reliable corona-resistant and insulation protection. Additionally, it serves as a high-performance corona-resistant structural part for transformers and various high-voltage electrical assemblies, optimizing internal insulation structures and greatly improving the overall safety and service life of high-voltage electrical systems.

To fit diverse industrial production and assembly needs, our company offer the thickness ranging from 0.5mm to 30mm, covering most application needs for high-voltage motors and transformers. We also provide custom machined parts to match special equipment and unique working condition requirements.