Phoenix Contact 1313316 The coupler connector is a PRC 20 article with a black color and three positions available, accommodating conductors with cross sections ranging from 0.5 to 2.5 mm². It has a rated voltage of 400 V and current capacity of 25 A, featuring a screw connection method with a socket contact type. The connector accommodates cables with diameters between 8 and 14 mm and can be released using either a tool or by hand, as per the setting option.