Socapex is a brand of electrical connectors, known in the entertainment industry primarily for their 19-pin electrical connectors, commonly known as Socapex connectors, and used used in film, television, and stage lighting to terminate the ends of a multicable. They are wired with six hot/live pins, six neutral pins, six ground/earth pins, and a final central pin used to aid alignment of the male end of the connector with a female receptacle. While "Socapex" is a brand name owned by Amphenol-Socapex, the term is often applied to similar off-brand connectors as a genericized trademark. "Breakouts" are used to connect the fixtures to the cable. The breakout consists of a male Socapex connector with six "tails" with female Edison plug, stage pin connector, IEC 60309 16 A, NEMA L5-20P 'twist-lock' or BS 546 15 A connectors. A "breakin" is the opposite, consisting of "tails" with male Edison, stage pin connectors, IEC 60309 16 A, NEMA L5-20R 'twist-lock' or BS 546 connectors feeding a female socapex connector. These are used to connect Socapex cables to dimmer packs that do not have Socapex outputs.
Socapex also manufacturers a wider range of robust multi-way electrical connectors available in various standard and custom configurations. These are used for other high-current applications within live events; commonly for trunk cables to connect PA speakers or stage wedges to amplifiers, usually using breakin and breakout cables to NL2/NL4/NL8 or EP5. While some companies use Socapex as a rigging motor power cable, this is generally not recommended as differences in voltage (i.e., 400 V vs. 230 V) can be misinterpreted, causing extensive equipment damage.