Meltric uses solid silver-nickel contact surfaces on almost all of its plug and receptacle product lines. The 85% silver/15% nickel composition of the contacts add the beneficial physical properties of nickel to the excellent electrical characteristics
of silver.

This silver-nickel material provides significant advantages
over the brass materials used on most other types of plugs and receptacles.

• Silver-nickel maintains its low contact resistance and   superior electrical properties even after oxidation and   tarnishing.

• Silver-nickel withstands arcing very well and only welds at   extremely high pressure and temperature.

• Thanks to the influence of the nickel, silver-nickel provides   excellent wear resistance.

• Silver-nickel performs wells in and withstands wet and   corrosive environments.

          • Brass is not arc resistant, so it is not suitable for repeated making and
            breaking under load.

          • Brass is a soft material and wears rapidly, degrading the operational
            characteristics of the contact.

          • Brass oxidizes easily and thus does not perform well in wet or
            corrosive environments.

          • Brass's contact resistance increases rapidly due to tarnishing that
            occurs in normal use.