Recommended contact material for various switches

                Recommended contact material for various switches from LML Metal
This article will introduce suitable contact material for vaious switches,LML Metal produced many electrical contacts for switches,including A.C.switches and D.C.switches.

First,let us see some A.C. Switches , such as  Molded Case Circuit Breaker  ,if the Interupting Capacity <10KA ,the best contact material we recommended is  AgSnO2,then  AgW，AgMo，AgC，AgZnO，AgCdO the Priorty Recommendatio is Left to Right.

Some more Recommendation as below:

 Molded Case Circuit Breaker
 Interupting Capacity <10KA  AgSnO2， AgW，AgMo，AgC，AgZnO，AgCdO
 Interupting Capacity <25KA  AgSnO2， AgW，AgWC  AgWCC+AgWC，AgC+AgNi，AgCdO
 Interupting Capacity <150KA AgWCC+AgWC，AgC +AgNi

Magnetic  Contactors

  Rater  Current  5A~15A  AgNi，AgCdO
 Rater  Current   15A~50A  AgSnO2In2O3， AgCdO+α
 Rater  Current   >50A  AgSnO2In2O3， AgCdO+α  Auxilary Contact  Ag，AgNi

 Relays
    Rater  Current  <5A  Ag， AgNi， AgCdO
 Rater  Current  5A~10A  AgNi，AgSnO2， AgCdO
 Rater  Current   >10A  AgSnO2In2O3， AgCdO

  Thermostats  Ag，AgNi，AgSnO2，AgCdO

  Push Button Switches  Ag，AgNi，AgSnO2，AgCdO

  Select Switches  Ag，AgNi，AgSnO2，AgCdO

  Limit Switches  Ag，AgNi，AgSnO2，AgCdO

  Micro Switches  Ag，AgNi，AgSnO2，AgCdO

  Medium Switches  Ag，AgNi，AgSnO2，AgCdO

  Lever Switches  Ag，AgNi，AgSnO2，AgCdO

  Oil Switches  CuW

    Other A.C. Switches  Ag，AgNi，AgSnO2，AgCdO

For  D.C. Switches


  Flasher  AgCuNi，AgCu，AgSnO2

  Relay  AgNi，AgSnO2，AgSnO2In2O3，AgCdO

  Regulator  Ag，AgSnO2，AgSnO2In2O3，AgCdO

  Starter  AgSnO2In2O3，AgW，AgCdO

  Horn  AgSnO2，AgW，W

  Other D.C. Switches  AgNi，AgSnO2，AgSnO2In2O3，AgCdO