ČSN EN IEC 61076-2-104 ed. 3

This part of IEC 61076 describes 3-way to 12-way circular connectors with M8 screw-locking or with nominal 8 mm snap-locking, for connection of automation devices, for signal and power transmission up to 50 V AC / 60 V DC rated voltage and up to 4 A rated current. These connectors are available as fixed or free connectors, either rewirable or non-rewirable. Male connectors have round contacts 0,48 mm, 0,6 mm, 0,7 mm and 1,0 mm, depending on the number of ways and coding, with all contacts being of the same size. The different codings prevent the mating of differently coded male and female connectors. NOTE - M8 is the dimension of the thread of the screw locking mechanism of these circular connectors.