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Noise level |
The international limits of noise produced by general purpose electric motors are defined in IEC 60 034-9, with which our standard range of motors comply. There are 3 main sources of noise : 1. Magnetic forces which tend the stator core radial oscillations. 2. Bearings which generate noise due to imperfections in the geometry of the balls and rollers. 3. Cooling fan which generates so called ventilation noise. Among these 3 main sources of noise, the ventilation noise is the most dominating factor especially on large motors. Special measures for further noise limitation can be taken on request. |
Frame size: 56 to 400
Output range: 0,06kW to 710 kW and
1,1 kW to 90 kW (CEMEP's eff2 standards)
Frame size: 56 to 355
Wound Type: Dahlander and dual wound
Number of poles: as per request
Degree of protection: IP55
Voltages: 380 – 415 V and all commonly used voltages.
Frequency: 50 and 60Hz
Construction type: All common construction types.
Housing: Frame size 56 to 132 aluminium,
Frame size 160 - 356 cast iron.
Cooling type: Surface air cooling (IC 411).
Insulation class: “F” (105K)
Temperature rise clans: “B” (80K)
Frame size: 63 to 112
Output range: 0,18kW to 4 kW
Number of poles: 2 and 4
Degree of protection: IP55
Voltage: 230 V..
Frequency: 50 and 60Hz
Construction type: All common construction types.
Housing: Aluminium
Cooling type: Surface air cooling (IC 411).
Insulation class: “F” (105K)
Temperature rise clans: “B” (80K)
Energy is valuable Energy-saving motors that pay off eff1@gamakmotor.com |