An equipment unit for the automatic loading of multiple items arranged on the same unit of a switching machine, of a type comprising several feeding belts (1,2,3,4,8,19) capable of receiving the items and transferring them, while appropriately spaced, to a loading belt (11) capable of receiving such items and to feed them to a machine, wherein said feeding belts comprise at least one belt (8) mounted on a support (9) capable of rotating 180° to invert the order of transferring the items from said belt to a loading belt at a substantially zero relative velocity.