Wago wsb quick marking system function labels 249 series wago 249 606 wago 249 606 wsb quick marking system vertical marked l n ackn fail a1 a2 test n 14 24 10ea 10 strips with 10 markers per card white wago 249 606 wsb marking system l n ackn fail a1 a2 test n 14 24 white 5pk