Protective contact coupling, 16A 3p (2P+PE) 250V (250V~) IP54, Frequency: AC, Technical identification colour: blue RAL 5015, Contact carrier/contacts: The contact carrier is made of polyamide, The contacts are nickel-plated brass, Maximum conductor cross-section: 4.0 mm², Housing material: Polyamide, Connection technology: Head screw terminal, Cable entry: Screw connection, System: German system - Type F, Device colour: Collar black RAL 9005, hinged lid black RAL 9005, cable gland black RAL 9005, housing cover blue RAL 5015, Device height: 123 mm, Device width: 52 mm, Device depth: 64 mm, Halogen-free: yes, Other technical properties: with German system, With multi-grip cable gland and integrated strain relief, The hinged lid is self-closing