5 Mounting
33BA6820378-03 EN
This chapter describes how to correctly mount the device.
CAUTION
Risk of injury!
Risk of injury due to shattered glass cylinder of the desiccant
container as the result of mechanical tension or jolts!
► Wear safety gloves during assembly in addition to the protective equip-
ment that must always be worn.
The DIN flange, 4-hole circular flange and 2-hole RM flange connection ver-
sions as well as the dimensions of the different MTRAB versions are listed in
the chapter "Dimensional drawings [►Section 13, Page 110]."
5.1 Installation recommendations
▪ Install the MTRAB dehydrating breather as close to the transformer as
possible.
▪ Provide a pipe at least 1m in length above the MTRAB.
▪ The total length of the pipe from the MTRAB to the expansion tank should
not be more than 20m.
▪ Ensure that the pipes have an incline of at least 2°.
Figure10: MTRAB pipe length
▪ Ensure that the pipes are not horizontal.
▪ Prevent the pipe from dipping between the MTRAB and the expansion
tank.
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