FeaturesMultiple connectors are made from either copper or aluminum bar and can be used in a variety of neutral and grounding applicationsAluminum connectors are tin plated for low contact resistance and are suitable for use with copper or aluminum conductorsCopper connectors are suitable for use with copper wire only14 to 4 AWG multiple connectors can be custom made in any number of wire holes up to 190 holesContact NSi for price and delivery information0.312 in hole spacing4 circuits14 to 4 AWG wire size