NF2C-B-2 Professional `Phono Plug` (`RCA`- or `CINCH`- type). Ground before signal, gold contacts. Per pair - marked red and black.   Phono (RCA) / Profi Spring loaded ground contact: retractable element with separate wedge contacts which keeps the shell in the front position when engaged thus also providing a direct and strictly coaxial electrical connection from the socket via the shell to the cable shield. All metal design, machined brass, black ceated shell. Easy assembly and soldering (large soldering area, rapid-flow plating). High grade plastic insulator with high creep resistance. TECHNICAL DATA Electrical Rated current: 16 A Rated voltage: 50 V ac Insulation resistance: > 100 G Dielectric strength: 1500 V dc Capacitance (pin to shell): 7 pF Mechanical Cable anchoring: NEUTRIKｮ chuck principle Cable OD range: 3.0 - 5.5 mm (blue chuck) 5.5 - 7.3 mm (black chuck) Max. wire size: 2.5 mmｲ / 14 AWG Solderability: complies with IEC 68-2-20 Materials Shell: Brass CuZn39Pb3 black coated Contact pin: Brass CuZn39Pb3 0.5 mm Au plated Ground contact: Brass CuZn39Pb3 0.5 ｵm Au plated over 5 ｵm Ni Chuck: Polyacetal POM Insulator: PBTP Temperature range: -30ｰC to +80ｰC