Standards Development

Scope

This part of IEC 61076 specifies circular connectors with size B12, B17, B23 and B40 with bayonet-locking, typically used for power, signal and data transmissions in industrial applications. These connectors consist of fixed and free connectors either rewirable or non-rewirable.Power contacts of male connectors are round contacts with Ø 1 mm, Ø 1,5 mm, Ø 1,8 mm, Ø 2,25 mm and Ø 4 mm, with current ratings up to 64 A per pole and rated voltage of 50 V, 300 V or 600 V AC/DC. Power contact groups are classified by type and identified throughout this document as “P” followed by two digits “01” through “09” (see 4.3, Table1).Signal contacts of male connectors are round contacts with Ø 1 mm and Ø 1,8 mm, with current ratings up to 20 A per pole and rated voltage of 50 V AC/DC. Signal contact groups are classified by type and identified throughout this document as “S” followed by “0”, “1”, or “2” (see 4.3 Table 2).Data contacts of male connectors have round contacts with Ø 0,8 mm and Ø 1 mm, with current ratings up to 8 A and rated voltage of 50 V AC/DC. Data transmission performance with frequencies up to 600 MHz. Data cores are classified by type and identified throughout this standard as “D” followed by “1”, or “2” (see 4.3 Table 3).Connectors can be identified by data core (D) and complementing power (P) and signal (S) groups and optionally by number of poles, hence by the function provided for field applications.These connectors are designated for two main target applications, which differ as follows:Application A is for data transmission with power over data Application B is for data transmission without power over dataConnectors with power, signal and data contacts of the same gender are intended to transmit data with power (Application A), while connectors with data contacts without same gender of power and signal contacts are intended to transmit power through the data contacts (Application B).The codings provided by this standard prevent the mating to any other connector with similar sized interfaces covered by this standard.NOTE 1: 12, 17, 23, 40 are the approximate dimensions in millimetres of the contact carrier diameter of these circular connectors.