Electrical connecting device i.e. electrical plug-in connector for e.g. electric wires, has angular orientation verification unit verifying angular orientation of device with respect to horizontal when base is pre-assembled in wall

摘要

The device has base (200) that is fitted or fixed on a wall (M), where the base has a cap for covering the base. The base has a support plate (210) applied against the wall. An angular orientation verification unit (400) verifies an angular orientation of the device with respect to horizontal, when the base is pre-assembled in the wall. The verification unit has a cylindrical tube (410) including a liquid, where the tube is integrated to the base.