Cable Terminal Lug

Give three things for each line: the type (ring, spade, receptacle, pin, butt), the conductor size it must take, and the stud or screw hole diameter (or tab width for receptacles). The catalogue asks for the terminal type number together with the cable size it will be used on.^[1]

The nominal size on an insulated JIS-type terminal is a wire-size class, and the insulation colour shows it: red 1.25 for roughly 0.25–1.65 mm² (22–16 AWG), blue 2 for 1.04–2.63 mm² (16–14 AWG) and yellow 5.5 for 2.63–6.64 mm² (12–10 AWG). Each class has its own crimping die, so the tool on board must match.^[2]

If the ship already uses one maker’s terminals and crimper, say so. One maker notes that a crimp is more secure if the wire is at least 0.5 mm², and that thinner wire should be folded in two before crimping.^[2]

JIS C 2805 (current edition 2010) is the Japanese standard for crimp-type terminal lugs for copper conductors, covering both non-insulated lugs crimped directly and insulated lugs crimped through their insulation. Terminals made to it carry the JIS mark; ask for it if the IMPA description you are ordering against is a JIS item.^[3][2]