China Contact Electrical Contact Contactor Contact

Silver cadmium oxideSilver cadmium oxide has good resistance to fusion welding and arc erosion due to the violent decomposition and evaporation of cadmium oxide under the action of arc.Low and stable contact resistance. At the same time, silver cadmium oxide also has good processing properties.Cadmium oxide has certain toxicity, and the increase of its content can improve the anti-welding performance of silver cadmium oxide materials, but it will increase the contact resistance and temperature rise.At the same time reduce the processing properties of the material.AgCdO Mechanical properties and application of contact materialsBrandMaterial namedensity g/cm3Resistivity μΩ·cmhardness HV 0.3tensile strength MPaElongation after break%Application fieldSCE03AgCdO(10)10.15280~90250~30025Relays, contactors, switchesSCE06AgCdO(12)10.12.180~90270~30025SCE08AgCdO(13.5)10.052.1280~95270~30020SCF09AgCdO(15)102.285~95280~30020SCE05AgCdO(17)9.952.2590~100290~31015Silver tin oxide/silver tin oxide indium oxideSilver tin oxide is the most ideal environmentally friendly low-voltage contact material for replacing toxic silver cadmium oxide. It has excellent resistance to fusion welding and arc erosion resistance.Gradual replacement of silver cadmium oxide materials is widely used in contactors and general-purpose relays, magnetic holding relays, and automotive relays. Added 3~5wt.%Indium oxide silver tin oxide indium oxide material has better resistance to material transfer under DC load conditions and is suitable for use in automotive relays and other fields.In order to meet the diversity and individual needs of low-voltage electrical appliances, the company has developed a variety of silver tin oxide materials for use, with a tin oxide content of 8 to 16 wt.%.The content of indium oxide is 0~5wt.%. The mechanical and physical properties and application of the main grade materials are shown in the following table.AgSnO2 Mechanical properties and application of contact materialsBrandMaterial namedensity g/cm3Resistivity μΩ·cmhardness HV 0.3tensile strength MPaElongation after break%Application fieldSTA07AgSnO2(12)9.752.2570~80250~27020AC contactorSTA08AgSnO2(12)9.752.2575~90270~30020STA09AgSnO2(14)9.652.3580~100290~32015STC05AgSnO2(10)9.852.1580~90290~32020Small and medium relays and switchesSTC08AgSnO2(12)9.82.290~110300~33020Magnetic holding relay, AC contactor, leakage protection deviceSTC09AgSnO2(12)9.752.2590~110280Diamond Tools ~30020STC15AgSnO2(14.5)9.62.4585~100280~31018STC16AgSnO2(16)9.52.580~100280~30020STC17AgSnO2(12)9.752.2580~95280~31025STD05AgSnO2(10)9.852.1590~110230~26028Small and medium general purpose relaySTD08AgSnO2(12)9.752.2585~100270~30025SIE06AgSnO2(7)In2O3(3)9.92.1580~90300~33028Automotive relay, general purpose relaySIE08AgSnO2(8)In2O3(4)9.82.2590~100310~34025SIE09AgSnO2(10)In2O3(4.5)9.652.3595~110320~35023