Wago mini wsb quick marking system for wago io system alphanumeric 247 series wago 247 510 wago 247 510 miniature wsb quick marking system for wago io system horizontal marked a0 a1 a8 a9 10ea consecutive numbersletters each strip decade marking with red printing white wago 247 510 mini wsb marking system for wago io system a0 a1 a8 a9 white 5pk