LAK DC Motors - T-T Electric

Application data
Standards
IEC 60034­1
Insulation
Class H
Temperature rise
Frames 112­180: Class F
Frames 200­280: Class H
Vibration class and balance
LAK 4000 motors follow IEC
60034­14 with vibration class A
as standard . Grade B is available
on request . The motors are balanced
with half key as standard .
Overload capacity
LAK 4112­4280:
1 .6 x FLT for 15 sec . every 5
minutes
1 .8 x FLC for 30 sec . every 30
minutes
Terminal box position
LAK 4112­4180:
Standard: On right side of the
motor (facing d­end) .
Mounting of terminal box on top
or left side on request .
LAK 4200­4280:
Standard: On top of the motor .
Mounting of terminal box on
either side of the motor on
request .
Blower position
Standard: On top of the motor at
the non­drive end .
Other positions on request .
Blower is supplied without filter
as standard .
Filter on request .
Bearings
Grease lubricated ball bearings
on D­end as standard .
For belt drive please contact our
sales offices .
Painting
The standard LAK surface finish
has excellent corrosion
resistance properties . The
standard colour of LAK motors is
blue according to Munsell 8B
4 .5/3 .25 (similar to RAL 5024) .
Heat exchangers
Air/water (IC86W):
Air/water exchangers are especially
recommended for polluted
environment .
Standard is for clean water .
For corrosive water, please
contact T­T Electric .
Position on top of the motor
as standard . Water connection
flanges at right hand side
(facing D­end) .
Max . water pressure 10 PSI
Max . inlet water temperature
25°C . A water temperature rise
of 8­10°C must be expected .
LAK 4132­4180:
Fan motor at N­end .
LAK 4200­4280:
Fan motor at D­end .
A constant speed fan circulates
the internal cooling air . A polyamide
filter is provided to prevent
circulation of carbon dust .
For motors with low loads or a
low incoming water temperature,
a temperature regulator is
recommended to avoid condensation
in the cooling air circuit
and to minimize water consumption
.
6
Air/air (IC666):
Detailed heat exchanger information on request.
Air/air heat exchangers are
recommended where water is
not available for cooling purposes
.
The output of a motor with air/air
exchanger will be approximately
20% lower compared to cooling
forms IC06/17/37/86W .
LAK 4132­4280:
Position: On top of the motor as
standard .
Two constant speed fans at top
of the heat exchanger to provide
air circulation for the outer and
inner circuits .
A polyamid filter is provided to
prevent circulation of carbon
dust .