Electrical contacts for MCCB (Molded Case Circuit Breaker) are made of composite materials consisting of silver with high electrical conductivity and materials such as tungsten and tungsten-carbide with high melting point. In recent years, the cost of an electrical contact has become important in order to deal with escalating price of raw materials and international price competition. Our company developed electrical contacts with low silver content for cost reduction focusing attention on silver which occupies a great part of the raw material cost.
詳細資料はこちらからご覧ください