P/M copper CT bus cuts cost by 18%.

A copper CT bus for a global circuit protection device in an electrical power box reduces costs by 18% when made by powder metallurgy methods, reports Webster-Hoff Corp., Glendale Heights, Illinois. Made for Siemens Energy & Automation Inc., Bellefontaine, Ohio, the complex part has a density of 8.3 g/c[m.sup.3], an ultimate tensile strenght of 28,000 psi, a yield strength of 8600 psi, and hardness of 60 HRH. Secondary ...