The 12-J20 is a two-way mounting socket designed as an accessory for the 1610 series thermal automotive circuit breakers. It provides secure connection points via 6-32 UNC screw terminals, which should be fastened with a maximum tightening torque of 1.2 Nm. This socket offers flexible installation, supporting both surface mounting and attachment to a symmetrical hat rail (EN 50022-35x7.5). It is used to facilitate the proper mounting and wiring of circuit breakers in extra low voltage systems, typically found on vehicles and marine craft.