Weidmullerndi katswiri wodula zingwe zamkuwa kapena aluminiyamu. Zinthu zosiyanasiyana zimayambira pa zodulira zazing'ono zomwe zimagwiritsidwa ntchito mwamphamvu mpaka zodulira zazikulu. Kugwira ntchito kwa makina ndi mawonekedwe apadera a chodulira kumachepetsa khama lofunikira.
Ndi mitundu yosiyanasiyana ya zinthu zodula,Weidmullerikukwaniritsa zofunikira zonse zogwirira ntchito zaukadaulo pa chingwe.
Zida zodulira ma conductor mpaka 8 mm, 12 mm, 14 mm ndi 22 mm m'mimba mwake kunja. Mawonekedwe apadera a tsamba amalola kudula ma conductor a mkuwa ndi aluminiyamu popanda kuphwanya popanda kugwiritsa ntchito mphamvu zambiri. Zida zodulirazi zimabweranso ndi VDE ndi GS-tested protective insulation mpaka 1,000 V motsatira EN/IEC 60900.