SIEMENS
Selection and ordering
HT-direct motors 1FW4 air-cooled
3/12
Siemens D 86.2 · 2007
3
■
Additional information
Packing weights and packing dimensions
Packing weights, tare
Packing dimension = Largest motor dimension + Supplement
Cooling
The motors are designed in accordance with EN 60034-1 for
operation up to 40 °C ambient temperature, maintaining all of
the motor data.
When the HT-direct motors are operated at higher ambient tem-
peratures, derating factors must be taken into account.
The motors are forced-ventilated as standard. Installation or
building in of the motor must not affect the air inlet.
Different ambient temperature and site altitude
Forced-ventilated HT-direct motors are designed for ambient
temperatures from –20 °C to +40 °C.
The motors are suitable for site altitudes up to 1000 m above sea
level.
For higher ambient temperatures and/or site altitudes higher
than 1000 m above sea level, the specified motor rated torque
must be reduced using the factor
k
HT
.
Depending on the frame size of the motor, special windings may
be added to the motors for the different operating conditions.
This results in a maximum torque of the motor of:
T
max
=
T
rated
·
k
HT
T
max
= Maximum torque in Nm
T
rated
= Rated torque in Nm
k
HT
= Factor for different ambient temperature and
site altitude
If the maximum torque is no longer adequate for the drive, it
should be checked whether the motor with the next higher rated
torque fulfills the requirements.
Factor
k
HT
for different ambient temperature and
site altitude
Ambient temperature and site altitude are rounded off to 5 °C or
500 m.
Dynamic foundation loading
1)
Load at one motor long side (that is for two feet).
Type
1FW4 . . .
Land transport
on battens
Type of construction
IM B3
Sea transport in
wooden cases
Type of construction
IM B3
kg
kg
. . . 401/403/405/407
90
395
. . . 451/453/455
95
470
. . . 501/503/505
100
550
Dimensions
Supplements for
Land transport
on battens
Type of construction
IM B3
Sea transport in
wooden cases
Type of construction
IM B3
mm
mm
Length
+250
+250
Width
+200
+200
Height
+200
+500
Ambient tem-
perature
Factor
k
HT
for site altitude above sea level
°C
1000 m
1500 m
2000 m
2500 m
3000 m
30
1.07
1.04
1.02
0.98
0.95
35
1.03
1.02
0.98
0.94
0.92
40
1
0.97
0.93
0.90
0.87
45
0.95
0.93
0.88
0.86
0.83
50
0.91
0.88
0.83
0.81
O. R.
55
0.85
0.83
O. R.
O. R.
O. R.
60
0.8
O. R.
O. R.
O. R.
O. R.
Type
F
A
1)
kN
F
B
1)
kN
1FW4401-3 . . .
44
10
1FW4403-3 . . .
50
15
1FW4405-3 . . .
57
18
1FW4407-3 . . .
67
25
1FW4451-3 . . .
71
24
1FW4453-3 . . .
77
27
1FW4455-3 . . .
88
34
1FW4501-3 . . .
93
33
1FW4503-3 . . .
113
48
1FW4505-3 . . .
136
66
(
F
)
A
F
B
(
F
)
B
F
A
G_D086_EN_00026
F
= Down
A
F
= Up
B