Silver is one of the most extensively used metals in electrical contacts due to its corrosive resistance, electrical conductivity and thermal conductivity properties. In its pure form, it is suitable for low-pressure contacts demanding high conductivity.
Operating parameters which indicate other contact pressure, material transfer or arc quenching considerations are best served by silver alloys with copper, cadmium or cadmium oxide.
One of the big advantages in dealing with SBA is we are one of the few companies to manufacture the most widely used contact material, cadmium silver oxide on our premises.
This provides our clients with the speed, versatility and surety they have come to expect from us. SBA also works confidently with all other metals including copper tungsten, silver tungsten and silver tin oxide.
Medium to heavy duty applications may call for the use of silver tungsten or copper tungsten contact material. In order to accommodate requirements dictated by economic or substrate bonding factors, SBA produce a range of silver and silver alloys in laminated bi-metal materials. We would be pleased to advise on all your requirements.
High conductivity, low contact resistance. Low oxidation and corrosion.
Lower conductivity and material transfer. Higher oxidation and hardness.
Medium conductivity, low resistance and material transfer. Hard with excellent arc quenching properties.
Lower conductivity, high hardness. Ideal for high voltage heavy duty.
As for Silver Tungsten. Applicable to oil filled installations.
Higher hardness, low conductivity, alternative to Silver/Cadmium Oxide