Description

silver tungsten carbide utilize the refractory properties of tungsten (melting point : ***0°C) and tungsten carbide (melting point : ***0°C) : can withstand strong electrical arcs with low erosion and low welding tendency. However, the reduced arc mobility as well as the formation of tungstates and oxides generate resistance and temperature rise. These drawbacks may be compensated by using AgC for the fixed contact, choosing the most appropriate tungsten or tungsten carbide content and grain size, utilizing a stronger magnetic blow-out
Applications:
circuit breakers
earth leakage breakers
miniature circuit breakers