Sta-Kon F9011 NON-INS FERRULE 14, 2.5 MM2, LG .27

The F9011 non-insulated ferrule is sized for 14 AWG conductor, which is 2.5 mm2 in metric terms. If you're terminating stranded 14 AWG into a screw or cage-clamp terminal, this is the matching ferrule. For 16 AWG or 12 AWG you need a different ferrule size, since the barrel bore is fixed to one conductor cross-section.

Bare metal, no plastic collar. It is a non-insulated copper ferrule with a metallic finish, so there is no colored sleeve to identify the wire size by sight. If your panel build requires color-coded, insulated ferrules for inspection or strain relief at the barrel, you need an insulated type instead.

The barrel length is .27 inch. That is the figure to use when you set your strip length: strip the conductor to roughly the barrel length so the strands fill the sleeve without bare copper standing proud of the end.

A ferrule like the F9011 gathers the strands of 14 AWG stranded conductor into a single solid copper sleeve, so the screw or clamp bears on the sleeve rather than loose strands. That stops strands splaying out of the terminal block and keeps the connection from loosening as the clamp relaxes. It is standard practice on control panels and terminal strips fed with flexible stranded wire.

Germany. Country of origin is listed as Germany (DE), which is the detail government and institutional buyers usually need for sourcing or trade-compliance paperwork.

Yes, ferrules need a ferrule crimper, not a standard insulated-terminal tool. A four-indent or hex-profile ferrule crimper set for 2.5 mm2 gives the square or hex compression the sleeve is designed for. A plain pliers crimp flattens the barrel and will not hold reliably in a terminal clamp.