II. Silver-copper composite contact (Ag / Cu)
This contact has good electrical conductivity and its surface is not liable to oxidization. The addition of 3-28% copper may remarkably improve the silver's flame resistance. Hence, copper contact material may be used in current strength up to 16A. The addition of copper, especially of high copper content, for example 10% , will greatly reduce material transferring during DC working conditions. It is widely used in AC contactors, relays, electric tool switches, buttons, timers, and other household electrical appliances.
III. Fine crystal silver-copper composite contactor:
This fine crystal silver contains a 0. 12% nickel additive and has
A low contact resistance, which is similar to that of pure silver,
Without the variable switching times. Its fusion welding and flame
Resistance is slightly higher than that of pure silver, and under
Almost equal contact resistance, its strength and heat resistance are Higher than that of a silver-copper composite contactor. It is suitable
For various temperature adjustments of working current 10a.
VI. Silver-nickel-copper composite contact (AgNi / Cu)
In low voltage engineering, this contactor is widely used in AC switches as an electrical contactor. Its advantages include that it may be directly soldered to contactor bridges, without the need for additional solder layers, thus making manufacturing of contactor components simple and economical.
V. Silver-cadmium oxide / copper composite contact (AgCdO / Cu)
This contact includes AgCdO10, AgCdO12, AgCdO15, and this kinds of electrical contact has one of the most important materials in a silver-metal oxide contactor material. The fine CdO gives the contact special properties.