This standard defines the characteristics of square flange receptacles of the family of bayonet coupling
circular connectors, intended for use in an operating temperature range of - 65 °C to 175 °C or 200 °C
continuous.
It applies to models defined in Table 3.
For contact, filler plugs and rear accessories associated with this receptacle see EN 3646-002. For plugs and
protective covers see EN 3646-008 and EN 3646-009 respectively.