Supporting rail.
The invention relates to a supporting rail having an attachment limb and attachment flanges, which are offset and aligned parallel thereto, and which are provided over the complete length of their outer edges with an even toothed system on which there can be placed electrical apparatuses provided with an installation foot, the apparatuses or parts of the same gripping behind the attachment flanges and being fixed thereto. The toothed system extends with its depth directed at right angles to the longitudinal axis of the supporting rail preferably over only a part of the width of the attachment flange. Both attachment flanges are provided with identical toothed systems, facing away from one another, the tooth gaps and teeth of the two toothed systems in each case being allocated to one another or designed such that the tooth gaps of the one toothed system are in each case allocated to the teeth of the other toothed system, and vice versa. <IMAGE>