Wago miniature wsb quick marking system function labels 248 series wago 248 545 wago 248 545 miniature wsb quick marking system horizontal marked a b p n pe pen l1 l2 l3 ground 10ea 10 strips with 10 markers per card same letterssymbols each strip white wago 248 545 mini wsb quick marking system a b p n pe pen l1 l2 l3 gnd white 5pk