Contact Materials

Silver Graphite

Low contact resistance, excellent anti-welding performance, small temperture increase and self lubricating when used as sliding contact.

AgC

Silver Tungsten

Good electrical and thermal performance, high hardness, arc erosion resistance, strong welding resistance and less material transfer.

Silver Tungsten Carbide

Silver Tungsten Carbide Graphite*

Improve oxidation resistance of electrical contacts, stabilize electrical properties of electrical contact during current ow. *Good anti-welding and lubrication. Low contact resistance and hardness.

AgWC

Material Characteristics

With a wide range of electrical contact in different silver alloy composition, it is crucial that the correct electrical contact material is being deploy correctly to insure the longevity and quality of the electrical equipment.

Listed below is a general recommendation on the electrical material to be used under different AC loads. The list is non-exhaustive and new electrical contact material can be developed on receipt on the full electrical requirement.