3240 epoxy board transformer insulated epoxy board

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3240 epoxy board transformer insulated epoxy board

Name: 3240 epoxy board transformer insulated epoxy board
Brand: CANGZHOU KENUO INTERNATIONAL CO., LTD.
Price: 10000 USD
Availability: InStock

Price 10000 USD ($)/ Set

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MOQ : 1 Unit

3240 epoxy board transformer insulated epoxy board Specification

Rated Voltage
Up to 35kV (for insulation usage)

Standard
GB/T 1303.4-2009, IEC 60893, UL 94V-0

Operating Temperature
-40C to +155C

High Voltage
Up to 35kV insulation withstand

Low Voltage
Low voltage applications supported

Dimension (L*W*H)
Standard size 1020mm x 1220mm, thickness 0.3mm to 50mm

Product Type
Epoxy insulation board

Material
Epoxy resin glass fiber laminate

Frequency (MHz)
50-60

Efficiency
High insulating efficiency

Usage
Electrical insulation, transformer components, PCB base material

Power Scope
Applicable for low and medium voltage usage

Weight
Depends on dimension, typically 1.9~2.1g/cm density

Dielectric Strength
14.2 kV/mm

Color
Yellow (can vary light yellow to brownish)

Machinability
Easily drillable, cuttable, and millable

Mechanical Properties
Excellent dimensional stability, high mechanical strength

Thermal Grade
Class B (130C up to 155C)

Water Absorption
0.5%

Flexural Strength
340 MPa

Adhesion Strength
Strong bonding with copper and other conductive materials

Chemical Resistance
Good resistance to most chemicals and solvents

Surface Finish
Smooth, machined or cuttable

Packing
Standard export packaging or customized as required

Flame Class
UL 94 V-0

3240 epoxy board transformer insulated epoxy board Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
10 Units Per Month

Delivery Time
60 Days

About 3240 epoxy board transformer insulated epoxy board

3240 epoxy board [insulation board plastic board, by the electric glass cloth dipped in epoxy resin, by drying, hot pressing.

Epoxy resin is an organic polymer compound containing two or more epoxy groups in the molecule. In addition to their individual, their relative molecular mass is not high. The molecular structure of the epoxy resin is characterized by the presence of a reactive epoxy group in the molecular chain, and the epoxy group may be at the terminal, intermediate or cyclic structure of the molecular chain.

Name meaning

3240 for the national standard, corresponding to IEC893-3-2 in the EPGC201 type.
According to JB-T 2197-1996 electrical insulation materials product classification, naming and model preparation method:
3240 Four Arabic numerals
The first 3 represents the laminate, the wound product, the vacuum pressure impregnated product
The second 2 represents the inorganic bottom of the laminate
The third bit 4 represents the temperature index level
The fourth digit represents the product variety code
3240 full name for epoxy laminated glass cloth related definitions
3240 epoxy board laminate surface requires flat, no bubbles, linen and wrinkles, but allow other defects that do not affect the use, such as: abrasions, indentations, stains, and a small amount of spots. The edges should be cut neatly, and the ends must not be stratified and cracked.

Implementation of standards: GB / T1303.1-1998 (character), red, green, black for the protocol standards.

Temperature level: Class B maximum allowable temperature () 130 \ Winding temperature limit (K) 80 \ Performance reference temperature () 100

Color: true color (yellow), red, green, black, etc. (can be added color, deployed into a variety of colors)

Features: After curing the epoxy resin system has excellent mechanical properties, the temperature of the machine under the high strength, high humidity electrical stability under the good.

Electrical: After curing the epoxy resin system is a high dielectric properties, resistance to surface leakage, excellent resistance to arc insulation material

Uses: machinery, electronics, electrical use. Applicable to machinery, electrical, electronics, electrical and other fields. Also used for the processing of insulation, processed into various types of insulation accessories. Equipment insulation structure parts.

Thickness: Under normal circumstances 0.5 ~ 50mm, can also be required to produce 50 ~ 150mm thick plate.

The reaction of the epoxy resin and the curing agent used is carried out by a direct addition reaction or by ring-opening polymerization of an epoxy group in the resin molecule without the presence of water or other volatile by-products. They exhibit very low shrinkage (less than 2%) compared to unsaturated polyester resins and phenolic resins during curing.

Exceptional Electrical and Flame Performance

Certified to UL 94 V-0 flame class and providing a dielectric strength of at least 14.2 kV/mm, the 3240 epoxy board guarantees robust insulation for critical electrical environments. Its low water absorption rate further enhances long-term reliability, making it a dependable choice for transformer and PCB insulation applications.

Optimal Mechanical & Chemical Strength

With a flexural strength exceeding 340 MPa and outstanding dimensional stability, the board maintains integrity under stress and mechanical load. Its resistance to most chemicals and solvents ensures minimal degradation over time, making it suitable for demanding industrial settings where durability is essential.

Customizable and Easy to Machine

Available in a standard size of 1020mm x 1220mm with thickness ranging from 0.3mm to 50mm, the 3240 epoxy board is designed for easy modification. Users can drill, cut, or mill the material to precise dimensions, while choosing standard export packaging or custom solutions based on specific project needs.

FAQs of 3240 epoxy board transformer insulated epoxy board:

Q: How is the 3240 epoxy board typically used in transformer and PCB applications?

A: The 3240 epoxy board is commonly used for electrical insulation in transformer components and as a base material in printed circuit boards (PCBs), providing reliable dielectric strength and mechanical stability in both low and medium voltage environments.

Q: What are the main benefits of using this epoxy board for electrical insulation?

A: Key benefits include high insulating efficiency, strong flame resistance (UL 94 V-0), excellent flexural strength, stable performance across a wide temperature range (-40C to +155C), and good chemical resistance, ensuring safety and longevity in electrical installations.

Q: When should I choose this epoxy board for my project over other materials?

A: Select the 3240 epoxy board when you require superior electrical insulation, high flame retardancy, ease of machining, and robust mechanical properties for transformer, PCB, or other electrical and electronic applications operating within Class B (up to 155C) temperature limits.

Q: Where is this epoxy board typically manufactured and supplied from?

A: The 3240 epoxy board is predominantly manufactured, exported, and distributed by suppliers, traders, and manufacturers based in China, conforming to international insulation and safety standards.

Q: What is the process for machining or customizing the epoxy board to specific dimensions?

A: This board is easily machinable and can be drilled, cut, or milled using standard tools. Customization is supported for size, thickness, and packaging, accommodating varied requirements for industrial and electrical projects.

Q: How does the board withstand chemical exposure in harsh environments?

A: Thanks to its epoxy resin glass fiber laminate construction, the board offers good resistance to most chemicals and solvents, maintaining its insulating and mechanical properties even in chemically aggressive settings.

Q: What level of voltage can this epoxy board safely insulate?

A: The 3240 epoxy board is rated to safely insulate up to 35kV in both low and medium voltage applications, ensuring reliable protection for electrical systems.

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