elmex Earth Terminal Blocks replace conventional bus-bar used for earthing. The structural design is such that the mounting rail not only has a mechanical but also an electrical function. Earthing is established through the foot which clamps directly onto the rail. Earthing Terminal Blocks are mounted on the same rail along with other terminal blocks. The conducting part is Brass with Nickel-Tin plating, providing a low resistance path. Moreover, the housing is a Green-Yellow combination in accordance with universally accepted colour code for earthing.