Traditional low voltage appliances leave on people a mechanical and aloof impression and they are severely homogenized. The Contactor (5XC…) structure is bravely innovated through lessening exposed screws to make the products neat. The whole iExcellence series products are highly unified in design through significant and sustainable design factors and gain significant brand recognition. Unification design enables 5XC series products more flexibility in future extension and diversified combinations, offers more selections for customers and increases the awareness of brand.