Wago wsb quick marking system for terminal block 5 175mm alphabetic 249 series wago 249 554000 006 wago 249 554000 006 wsb quick marking system for terminal block width 5 175mm horizontal marked uv 50 each 10 strips with 10 markers per card same letterssymbols each strip blue wago 249 554000 006 wsb quick marking system for terminal block uv blue 5pk