Material Safety Design For Push-in Terminals

The conductor connection of push in terminal block must be made of certified metallic materials that meet electrical connection performance requirements and avoid potential chemical hazards; the insulating material surrounding it serves to prevent current leakage, and push in din rail terminal blocks must not release harmful substances during the entire process of production and use. Industry standards push fit din rail terminals clearly specify the heat resistance, aging resistance, and resistance to weather changes of insulating materials; the underlying goal of these specifications is to improve the user safety level of the entire electrical system.

Insulating materials push fit terminal block undergo complex conditions such as thermal cycling, humid environments, and chemical contamination throughout their life cycle. To support long-term reliable use, the plastics or composite materials used in push in terminal equipment must be free from heavy metals, halogens, and other substances that may have an impact on human health, equipment, or the environment. Global electrical safety standards such as the IEC series have clear testing requirements for the flammability and electrical isolation distance of plastics; these tests also indirectly involve the evaluation of the chemical safety properties of materials.