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Siemens MD 50.8 · 2017
Motor options
Designs for special environmental conditions
6
■
Condensation drain hole
Condensation can accumulate inside the motor as the result of
environmental effects. This can result in corrosion and lower
clearances and creepage distances.
The condensation is drained to the outside through the conden-
sation drain hole. Depending on the mounting position, the drain
holes are located at the DE and/or NDE of the motor.
The option "condensation drain hole" can only be used for the
following applications under certain conditions:
■
Internal motor corrosion protection
The outer surfaces of the geared motors have a high quality
paint finish.
For special applications, it may be necessary to apply a
protective coating to the inner surfaces of the motor as well.
Order code:
Condensation drain hole
N46
Motor
Gearbox type
Mounting position
BH.
KHF
Possible
Not possible
LA71
-
49 ... 79
M4
M1, M2, M3,
M5, M6
LE100
29, 39
-
M2
M1, M3, M4,
M5, M6
Order code:
Internal motor corrosion protection
N41
© Siemens AG 2017