Abstract: A current detector can be fixed in an upright position or in a flat position on top of the surface of a support. The detector includes a housing which is provided with a first series of passages for fixing screws, whereby the axes thereof are perpendicular to a large surface of the housing for fixation on top of the surface of a support. The housing is provided with a second set of passages for fixing screws, whereby the axes thereof are perpendicular to those of the first set of passages for the screws which are provided for fixation of the housing in an upright position on the surface of the support. At least one, preferably two, auxiliary flange mounting elements are placed adjacent to the housing and are mounted thereon, being provided with a complimentary shape for the sole purpose of fixing the housing in an upright position on the surface of the support and wherein the second set of passages for the screws is formed.