Page 14 - ABB_Installation_materials_catalog_EN

14 INSTALLATION MATERIALS

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System ABB boxes
Mounting box supports and interconnectors

Box supports The heights of the extension rings are 13, 28, and
There are two lengths of box supports that 60 mm. The 13-mm extension ring is suitable
can be used with ABB mounting boxes: 65 mm when a mounting box is installed on a double
(PMR577.65) and 95 mm (PMR577) Both box board; the higher ones are suitable for mounting
supports feature cut-off sections for different on, for example, brick walls or during renovation.
stud sizes. When box supports are combined, a
mounting box can be installed with a spar width
of up to 120 mm.

Interconnectors PMR490 interconnectors are used when an 85 mm
PMR474 interconnectors are used to connect ABB distance is desired between the mounting boxes.
mounting boxes to each other with standard This means that two 85 mm wide frames can be
distance c/c 71 mm, creating a conduit between mounted next to each other, for instance to
boxes for conductors when necessary. separate power and weak current devices.
PMR502 interconnectors are used when a 100 mm
distance is desired between the mounting boxes.