19-pin multi-channel connector carrying up to 6x 16A CEE circuits via multicore cable. Industry standard for power distribution in larger lighting setups.
Technical Details
The 19-pin Socapex connector features 6 sockets for Schuko plugs (CEE 7/4) at 16 amperes per phase, distributed across three 400V phases. The pin assignment follows the scheme: pins 1-6 for phase L1, pins 7-12 for phase L2, pins 13-18 for phase L3, and pin 19 for the neutral conductor. Modern Socapex distribution boxes often integrate RCDs (Residual Current Devices) with a 30mA tripping current and circuit breakers. Variants exist as 6-way, 9-way, and 12-way distribution boxes, with the 6-way distribution box (2 outputs per phase) being the most commonly used.
History & Development
The Socapex connection was developed in 1963 by the French company Socapex and established itself as a European standard in event and film technology from the 1970s onwards. In 1985, it was internationally standardized as CEE Standard 60309-2. In the 1990s, RCD-protected distribution boxes were introduced, and from 2000 onwards, LED indicators for phase monitoring appeared. Today, digital load monitoring systems and PowerCON hybrid solutions dominate the market.
Practical Application in Film
Socapex distribution boxes form the backbone of power supply in film productions. In "Blade Runner 2049" (2017), over 200 Socapex points distributed power for Roger Deakins' LED wall setups. The workflow typically begins with a 63A CEE feed into main Socapex distribution boxes, from there to decentralized 6-way distribution boxes at the lighting positions. Advantage: fast setup and dismantling due to standardized cabling. Disadvantage: weight of 2.3 kg per 6-way distribution box and a cable diameter of 25mm for 25-meter extensions.
Comparison & Alternatives
While Socapex dominates in Europe, North America uses the Edison system with separate 20A circuits. Neutrik's PowerCON systems are displacing Socapex in LED installations due to lower weight and True1 locking. Camlock connectors are used in large productions for 125A main distributions. Socapex remains the standard for medium power loads between 2-10kW, while below 2kW, multi-way Schuko adapters are increasingly used, and above 20kW, high-current connectors are employed.