Abb – 2TKA130004G1

Made of halogen free material (IEC/61249-2-21).

Made of halogen free material (IEC/61249-2-21).

Three extension rings are available for the standard mounting boxes. The lowest, PMR94 is 13 mm deep. Made of halogen free material (IEC/61249-2-21).

The PMR410 is 28 mm deep and is designed for use in, for example, brick walls.

The PMR399 is 60 mm deep and is often used in renovating old houses, when adding 50 mm thermal insulation to inside walls while leaving existing conduit installations in place. The extension ring is attached to the old mounting box so as to extend it to the level of the new boarding.

The AK17 extension ring is 13 mm deep, and is used to modify the AU17.2 mounting.

The AK14 extension ring is used to change the depth of the AU8 and AU19 junction boxes, so that conduiting can take place above the concrete reinforcement. It gives a 75 mm space between the top level of the cast and the conduits; the AU19 gives a space of 67 mm.