Technical Features - Sulzer MT Manual De Empleo Y De Mantenimiento

2 T Type of power supply ("M"= Single phase - "T"=Three phase)
3 S Design ("-"=Standard Sulzer design – "S"=New Sulzer 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)

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 Sulzer Technical Assistance.
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- Translation of the original instructions