Wago wsb quick marking system for terminal block 5 175mm numeric 249 series wago 249 601 wago 249 601 wsb quick marking system for terminal block width 5 175mm vertical marked 51 60 10ea 10 strips with 10 markers per card consecutive numbers each strip white wago 249 601 wsb marking system for terminal block 5 175mm 51 60 white 5pk