Electric Contact Rivets		Electrical Contact Tips		Recommended Contact Materials for Various Switches

Electrical Contact Tips	Common types of Contact Tips
Design Reference of Internal Oxidation Contact Tips	Design Reference of Powder Metallurgy Contact Tips

Electric Contact Tips    What is the most suitable dimensions and materials for different switches used under diverse electric current? It’s hard to fix a formula since the structure design for numerous switching appliances all differs and the contact materials are increasingly developed. We could only make the choice according to experience from the test result. The main factors might effect the electric performance as stated below:   ( 1) Switch Type: For magnetic contactors, relay or circuit breaker which are tested under different test condition, the adopted contact material and size are unlike. (2)Switch Structure: Such like spring press, arc-suppression design, heat-dissipation condition and breaking time should be considered while we choosing material and design the contact dimensions. (3) AC or DC: DC switches is liable to material transfer and welding. The contact area for DC switch is required by 10%~30% larger than that used in AC ones. (4) ElectricProperties: The main factors also include normal electric current, at-make current, voltage, electrical life, heat rising limit, etc. back