34
The company can alter the data mentioned in this manual without notifications
4.3 TECHNICAL FEATURES
Motori di tipo TEFC (Totally Enclosed Fan Cooled).
Shaft with cylindrical protrusion and key.
IC411 cooling (IEC 60034-6).
Insulation class F (thermal class 155). IE2, IE3, IE4 motors: temperature rise class B (thermal class 130)
Mountings: refer to TAB. VIII.
Normalized motors dimensions according to IEC 60072-1.
Protection degree (IEC 60034-5 – EN 60529):
-
Frame size 71-80: standard IP44, on request IP55;
-
Frame size 90-280: standard IP55.
Bearings:
-
Frame size 71-200: radial ball bearings permanently lubricated with grease;
-
Frame size 225-280: radial ball bearings lubricated with grease with greaser.
Frame:
-
Frame size 71-200: Standard aluminum;
-
Frame size 225-250: Standard aluminum, cast iron on request;
-
Frame size 280: Standard cast iron.
Terminal block position: on top.
Standard painting: epoxy coating with corrosion resistance corresponding to C3 Medium cycle (ISO 12944-6).
PTC thermistor as standard from frame size 225, on request for smaller sizes.
Noise: according to IEC 60034-9. For the sound pressure values refer to TAB.IV.
Balancing: unless otherwise indicated, the motor shafts are balanced with half key in accordance with ISO 21940-32.
Vibrations: according to IEC 60034-14.
Standard voltages:
Frequency 50 Hz:
-
1~: 220-240V up to 4 kW;
-
3~: 220-240/380-415V up to 4 kW; 380-415V / 660-720V starting from 5,5 kW.
Frequency 60 Hz:
-
1~: 220V up to 4 kW;
-
3~: 255-278/440-480 up to kW 4; 440-480/760-830V starting from 5,5 kW.
Single-phase version: available on request up to 4kW, with starting by electrolytic capacitor. Integrated thermal protection is available on
request.
4.4 OPERATING LIMITS – STANDARD VERSIONS (TAB. I)
Minimum ambient temperature: -15°C
Maximum ambient temperature: 40°C
Maximum height above sea level: 1000m
Relative humidity: 95% (20°C), 55% (40°C)
Maximum number of starting/hour: refer to TAB.I
Maximum permissible axial load: refer to TAB.IX-A
Maximum permissible radial load: refer to TAB.IX-B
Variations in voltage and frequency during operation: the performance and characteristics stated on the plate are respected if the power
supply falls within Zone A according to IEC 60034-1 (± 5% voltage, ± 2% frequency)
In case of use in conditions other than the above, contact SAER Technical Assistance.
2
T
Type of power supply ("M"= Single phase - "T"=Three phase)
3
S
Design (“-“=Standard SAER design – “S”=New SAER design)
4
4
Number of motor poles
5
280SM
Frame size (IEC 60072-1)
6
C
Version of the frame
7
B35
Mounting (EN 50347)
8
110
Rated power (kW)
9
400/690
Rated voltage (V)
10
50
Frequency (Hz)
11
IE3
Efficiency class (IEC 60034-30)
