China AC Contactor Moving Contact, Find details about China Electrical Contact, Contact from AC Contactor Moving Contact
| Silver nickel | |||||||
| Silver nickel has the advantages of good arc transfer characteristics, low contact resistance and stability, and excellent processing performance, and has medium and small currents. | |||||||
| Good anti-welding performance and arc erosion resistance, strong resistance to material transfer under DC conditions; increased nickel content can be mentioned | |||||||
| High material resistance to soldering, but slightly increases contact resistance and temperature rise. | |||||||
| The special method of adding a small amount of additives can significantly improve the anti-welding and arc erosion resistance of silver-nickel materials. | |||||||
| AgNi Mechanical properties and application of contact materials | |||||||
| Brand | Material name | density g/cm3 | Resistivity μΩ·cm | hardness HV 0.3 | tensile strength MPa | Elongation after break% | Application field |
| SNB28 | AgNi(10) | 10.3 | 1.9 | 90~105 | 320~360 | 3 | Small and medium size AC contactors, relays and switches |
| SNB27 | AgNi(15) | 10.2 | 2 | 90~105 | 320~360 | 2.5 | Small and medium size AC contactors, relays and switches |
| SNB02 ( Additive ) | AgNi(12)T | 10.3 | 1.95 | 95~110 | 330~370 | 2.5 | General purpose relay |
| SNB07(Additive) | AgNi(15)T | 10.25 | 2.05 | 100~115 | 330~370 | 2.5 | AC (air conditioning) contactor |
| SNB29 | AgNi(20) | 10.1 | 2.1 | 75~90 | 260~320 | 15 | AC contactor, thermal protection appliance |
| Silver cadmium oxide | |||||||
| Silver 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 materials | |||||||
| Brand | Material name | density g/cm3 | Resistivity μΩ·cm | hardness HV 0.3 | tensile strength MPa | Elongation after break% | Application field |
| SCE03 | AgCdO(10) | 10.15 | 2 | 80~90 | 250~300 | 25 | Relays, contactors, switches |
| SCE06 | AgCdO(12) | 10.1 | 2.1 | 80~90 | 270~300 | 25 | |
| SCE08 | AgCdO(13.5) | 10.05 | 2.12 | 80~95 | 270~300 | 20 | |
| SCF09 | AgCdO(15) | 10 | 2.2 | 85~95 | 280~300 | 20 | |
| SCE05 | AgCdO(17) | 9.95 | 2.25 | 90~100 | 290~310 | 15 | |
| Silver tin oxide/silver tin oxide indium oxide | |||||||
| Silver 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 materials | |||||||
| Brand | Material name | density g/cm3 | Resistivity μΩ·cm | hardness HV 0.3 | tensile strength MPa | Elongation after break% | Application field |
| STA07 | AgSnO2(12) | 9.75 | 2.25 | 70~80 | 250~270 | 20 | AC contactor |
| STA08 | AgSnO2(12) | 9.75 | 2.25 | 75~90 | 270~300 | 20 | |
| STA09 | AgSnO2(14) | 9.65 | 2.35 | 80~100 | 290~320 | 15 | |
| STC05 | AgSnO2(10) | 9.85 | 2.15 | 80~90 | 290~320 | 20 | Small and medium relays and switches |
| STC08 | AgSnO2(12) | 9.8 | 2.2 | 90~110 | 300~330 | 20 | Magnetic holding relay, AC contactor, leakage protection device |
| STC09 | AgSnO2(12) | 9.75 | 2.25 | 90~110 | 280~300 | 20 | |
| STC15 | AgSnO2(14.5) | 9.6 | 2.45 | 85~100 | 280~310 | 18 | |
| STC16 | AgSnO2(16) | 9.5 | 2.5 | 80~100 | 280~300 | 20 | |
| STC17 | AgSnO2(12) | 9.75 | 2.25 | 80~95 | 280~310 | 25 | |
| STD05 | AgSnO2(10) | 9.85 | 2.15 | 90~110 | 230~260 | 28 | Small and medium general purpose relay |
| STD08 | AgSnO2(12) | 9.75 | 2.25 | 85~100 | 270~300 | 25 | |
| SIE06 | AgSnO2(7)In2O3(3) | 9.9 | 2.15 | 80~90 | 300~330 | 28 | Automotive relay, general purpose relay |
| SIE08 | AgSnO2(8)In2O3(4) | 9.8 | 2.25 | 90~100 | 310~340 | 25 | |
| SIE09 | AgSnO2(10)In2O3(4.5) | 9.65 | 2.35 | 95~110 | 320~350 | 23 | |