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Aug 21, 2007
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A (brand name which has become generic like Leko™) type of connector. Website. The origin of Socapex (which is a french name) is :SOC.iété AP.plication et EX.ploitation du procédé ponsautl. Other manufacturers of compatible connectors include Litton-Veam, Lex, Link LKS, and Kupo.

The three most used Socapex SL61-series (or Socapex-compatible) connectors, in order of popularity, are:
1. Socapex #419 AR. Used for the distribution of power to lighting instruments, the 19-pin, allowing for 6 circuits. Can supply either 120V or 208V depending on what the male is plugged into and what breakout is plugged into the female end. Often wired with 12/14 cable, whereby the 6 grounds are bussed together on wires 13 & 14. The center pin, #19, is unused.
See for pinout. ChristieLites and Strand have an alternate pinout:
The "normal" way:_____The "ChristieLites and Strand" way:
Pin# Ckt# Use: Phase:_Pin# Ckt# Use: Phase:
1 1-LOAD L1 A__________1 1-LOAD L1 A
2 1-LOAD L2 B__________2 2-LOAD L1 A
3 2-LOAD L1 C__________3 1-LOAD L2 B
4 2-LOAD L2 A__________4 2-LOAD L2 B
5 3-LOAD L1 B__________5 3-LOAD L1 B
6 3-LOAD L2 C__________6 4-LOAD L1 B
7 4-LOAD L1 A__________7 3-LOAD L2 C
8 4-LOAD L2 B__________8 4-LOAD L2 C
9 5-LOAD L1 C__________9 5-LOAD L1 C
10 5-LOAD L2 A________10 6-LOAD L1 C
11 6-LOAD L1 B________11 5-LOAD L2 A
12 6-LOAD L2 C________12 6-LOAD L2 A
13-18 GROUND -________13-18 GROUND -
19 N/C -_______________19 N/C -
(Phasing may not be accurate for all distros. Some go AB,CA,BC,AB,CA,BC... Others go AB,BC,CA,AB,BC,CA...)

The "normal" break-out can be used for either 120 or 208, one just has to change the six female outlets. The "other" offers the benefit of passing no power if a 120 is connected to a 208, as the potential difference between hot and neutral is zero (but still 120V to ground!).

The same 19-pin connector is also used by some audio companies as speaker cable for arrays. When used in this application, all pins are wired straight through, thus the cable provides 9 pairs of amplified signal.

2. Socapex #37 Y. Another style of Socapex has 7 pins, is often wired with 16/7 cable, and is used for hoist (Chain Motor) power and control.

From TMB's site:
"What is the pin out on a 7-pin Socapex?
There is no standard wiring on a 7-pin connector for motor control. Normally the center pin, (#5), is used for the ground. However, the pins used for control and the pins used for power vary from rental company to rental company. Usually they are in groups - [1,2,3, control], [4,6,7 power], or [1,2,3, power], [4,6,7 control]. There is no industry standard, so you should always double check the wiring of any equipment that is sub rented and used with your gear. The reason to double check your gear is that 7-pin connectors carry power and control together and there is a potential for harming the equipment or the operator if the wiring configuration is not confirmed."
3. Socapex #337 P. The third type of Socapex connector, the 37-pin, is seldom seen or used today. This connector provides up to thirty channels of low voltage analog control for dimmers. Pinout at Mount


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