ČSN EN IEC 61076-2-101 ed. 4

This part of IEC 61076 describes M12 screw-locking circular connectors with 2-way up to 17 way, for data transmission with frequencies up to 100 MHz and signal and power transmission at up to 250 V rated voltage and up to 4 A rated current per contact. These connectors consist of fixed and free connectors, either rewirable or non-rewirable. Male connectors have round contacts, 0,6 mm, 0,76 mm, 0,8 mm or 1,0 mm according to number of ways and coding, all contacts with the same size. The different codings prevent the mating of differently coded male and female connectors. NOTE 1 - M12 is the dimension of the thread of the screw-locking mechanism of these circular connectors. NOTE 2 - These connectors are typically used for connecting industrial automation devices for process measurement and control. NOTE 3 - Several other IEC standards are available covering additional styles of circular connectors with M12 × 1 screw-locking, see Bibliography.