Electrical installation box for concrete structures, has cutting tip fitted to mouth of pipe or coupling which protrudes towards section of wall to be broken out

摘要

The device has a chamber for electrical devices, at least one side wall with a break-out opening closure for connecting a rigid or flexible pipe (4) or pipe coupling, which can be hooked (11) onto the box and pivoted about the hooking point from a pre-mounting position to a mounting position, in which the break-out cover is broken out by the pipe's or connector's mouth, which is tightly inserted into the opening. At least one cutting tip (15) is fitted to the mouth of the pipe or coupling that protrudes towards the section of wall to be broken out.