It's deformed because it used to be screwed down (likely in that terminal block). 'An electric wire ferrule (sometimes electric end terminal) is a metal tube crimped over stranded wire to secure the strands within a screw terminal. The terminal is. Screw terminal connectors are essential electrical components that secure wires through mechanical screw action, providing reliable connections for power distribution, control systems, and electronic devices across industrial and commercial applications. The wire may be wrapped directly under the head of a screw, may be held by a metal plate forced against the wire by a screw, or may be held by what is, in effect, a set screw in the side of a. Ferrule /ˈfɛruːl,ˈfɛr (ə)l/ noun a ring or cap, typically a metal one, which strengthens the end of a handle, stick, or tube and prevents it from splitting or wearing. The colour should indicate the gauge wire it matches. Image source: Google image search random image. Their simplicity, affordability, and performance make them a go-to solution for many electricians and installers.
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