He tohunga a Weidmuller ki te tapahi i ngā taura parahi, konumohe rānei. Kei roto i te whānuitanga o ngā hua ngā taputapu tapahi mō ngā wāhanga iti me te kaha tika tae atu ki ngā taputapu tapahi mō ngā diameter nui. Mā te mahi ā-mīhini me te āhua tapahi motuhake ka whakaitihia te kaha e hiahiatia ana.
Me te whānuitanga o ngā hua tapahi, ka tutuki i a Weidmuller ngā paearu katoa mō te tukatuka taura ngaio.
Ngā taputapu tapahi mō ngā kaiārahi tae atu ki te 8 mm, 12 mm, 14 mm me te 22 mm te whānui o waho. Mā te āhua mata motuhake ka taea te tapahi i ngā kaiārahi parahi me te konumohe me te kore e pēhi, me te iti rawa o te kaha tinana. Kei roto hoki i ngā taputapu tapahi he whakamarumaru VDE me te GS kua whakamatautauria tae atu ki te 1,000 V, e ai ki te EN/IEC 60900.