Wieland selos ivb wkwkn insulated cross connectors with screws wieland z728423270 this selos 3 pole insulated cross connector ivb wkn 16 3 from wieland has been designed with m4 screwable mounting for connections that are long lasting and maintenance free equipped with a copper current bar ensuring low contact resistance along with 3 bridged clamps featuring 12mm spacing compatible with the following din rail terminal blocks seloswkn 16ufeed through wieland z728423270 selos ivb