FR-4 Insulating Boards are environmentally friendly and heat-resistant insulators.
Board Color: Yellow, Green, White.
Thickness: Over 0.1mm.
Specs: 1022*1200, 600*1000.

Features: High mechanical and dielectric properties, good heat and moisture resistance, and excellent machinability. Applications: As insulation components in electrical equipment, including various types of switches, electrical insulation, carbon film printed circuit boards, computer drilling pads, molds, fixtures, and PCB test stands. They can also be used in damp environments and transformer oil. Widely applicable.
FR4 Epoxy Glass Fiber Board: Composite: Specifically used for electronic fabrics impregnated with materials such as epoxy phenolic resin, formed by high-temperature hot pressing.
Features: High mechanical and dielectric properties, good insulation and heat resistance, as well as moisture resistance, with excellent machinability.
Application: Used as insulating structural components in motors and electrical equipment.
Circuit Breakers, Fuses – They're there where there's a distribution panel, and they might be used in circuit diagrams to differentiate between multiple components.