FIELD: electrical engineering.
SUBSTANCE: invention relates to auxiliary modular device (1), case (10) of which contains on its upper or lower side (13, 15) two holes (17A, 17B) for access to electrical contacts and at least one input (19) for electrical connecting wires (3, 4). The specified case contains internal devices for mounting first internal element (50) having two windows (52A, 52B) and two passages (53A) that face one side (52) of the specified first internal element, while the specified internal devices are located symmetrically relatively to the median plane running parallel to the specified upper and lower sides of the case, so that the specified first internal element can be installed on the specified internal devices in two positions symmetrical relatively to the specified median plane, so that the specified windows and the specified passages form, respectively, the specified holes and the specified input of the case on the upper or lower side of the case.
EFFECT: simplification of manufacturing.
15 cl, 13 dwg
