The commonly used plastic materials for fuse holders mainly include the following categories, which vary in temperature resistance, insulation, voltage resistance, cost, and application scenarios: PBT engineering plastic (polybutylene terephthalate): It has excellent high temperature resistance, dimensional stability, insulation, and arc resistance, and is widely used in demanding applications such as automotive fuse boxes Nylon (such as PA6, PA66): It has good heat resistance, wear resistance, and corrosion resistance, and is commonly used in fuse holders that require certain mechanical strength and temperature resistance PPS (Polyphenylene Sulfide): a high-performance high-temperature material with a temperature resistance of over 260 ℃, excellent insulation and chemical resistance, suitable for fuse holders in high-end or harsh environments PBT and nylon are currently the mainstream materials for automotive and industrial fuse housings, while ABS and PVC are more commonly used in consumer electronics or low-cost scenarios.