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Selection and ordering
HT-direct motors 1FW4 water-cooled
2/2
Siemens D 86.2 · 2007
2
■
Overview
The motors are designed for the following rated voltages:
•
690 V
*
/50 Hz
•
400 V
*
/50 Hz
•
460 V
*
/60 Hz
Ambient temperature: –20 °C to +40 °C; when operated below
0 °C, use anti-freeze in cooling water. Motors can optionally be
ordered for higher ambient temperatures (see Page 2/6).
Cooling water inlet temperature: max. 25 °C; at higher coolant
inlet temperatures up to 45 °C, a motor Order No. must be se-
lected in accordance with the derating factors (see Page 2/10).
The order code for the higher cooling water inlet temperature
(see Page 2/6) must also be specified in the order.
Degree of protection: IP55
Cooling method: IC71W
Type of construction: IM B3
Overview of torques and outputs
in accordance with the rated speed
■
Benefits
When high torques and low speeds are required for electrical
drives in combination with compact dimensions and a low-noise
design, the HT-direct motor with water-jacket cooling provides
the ideal customer solution. Depending on the ambient condi-
tions, water-jacket cooling generally provides maximum cooling
performance – with minimal heating of the immediate
environment.
Rated speed
rpm
Max. rated torque
Nm
Max. rated output
kW
200
42000
879
300
41000
1288
400
40000
1675
500
34235
1792
600
33000
2073
800
19000
1591