Wieland selos earth din blocks wkwkn uv0 greenyellow wieland 5751090550 this greenyellow selos earth din block wkn 10 sl uv0 from wieland has been designed for efficient wiring and offers optimum handling reliable and maintenance free the smaller size makes it perfect in areas with limited space and is simple to connect wieland 5751090550 selos earth din block wkn 10 sl u v0 gryell