Wieland selos covers with warning symbol ad vb 2546101635 wieland 0434347568 this selos cover with warning symbol ad vb 54 from wieland features a yellow and black alertinformation symbol which can be snapped on to blocks that are still live after being switched off vde 0113 compatible with the following block seloswk 25 u wieland 0434347568 selos cover with warning symbol for wkn series yellow