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EBM PAPST
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依必安派特公司于1963年在德国成立。作为在电机和风机产业领域的技术领导者之一, 依必安派特拥有55家分支机构在世界各地为客户提供专业地风机及电动机的解决方案与服务。 |
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Ex-protected axial fans offer more safety for plants using natural refrigerants Whenever natural and inflammable refrigerants are used, the protection provisions for hazardous areas apply as of a filling capacity of 150 grammes – Ex-protected fans have to be used. Yet even in such cases, the energy-saving characteristics of EC fans can now be taken advantage of, as ebm-papst Mulfingen has developed an energy-saving GreenTech EC motor for use in Ex-zones 1 and 2. |
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The Ex-protected GreenTech EC motor with its performance characteristics fits axial fans with diameters ranging from 630 to 990 mm and in centrifugal fans of size 400 to 710 mm. Clearly, this opens new horizons as a suitable solution can now be found for practically every application in refrigeration and air-conditioning. And as the motor is classified "II 2 G Ex d e ib IIB T3 Gb" and thus complies with the provisions for hazardous areas, any Ex fan equipped with this motor may also qualify for other, less hazardous areas, e.g. for ventilation of Zone 1 areas where petrol fumes are to be expected occasionally.
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Ex-protected axial fan with GreenTech EC motor. |
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| Just as with our standard motors in GreenTech EC technology, this new Ex-protected variant by ebm-papst has its power electronics completely integrated in the motor. Of special advantage is the proven external-rotor design, as the axial blades or centrifugal impellers can be mounted directly on the rotor, i.e. directly on the "housing" of the motor. This results in compact dimensions and makes for very simple cooling, as the motor is instantly cooled by the air that the fan it drives delivers. The electrical interface provides two analogous inputs (0-10 V or 4-20 mA), a 0-10 V output for the speed signal and a voltage supply of +10 V and +24 V. Naturally, the materials used for the fan blades respectively impellers have to comply with the provisions for hazardous areas. Together with natural refrigerants, this makes for a logical combination, enabling you to be consistently eco-friendly in your decisions to a degree hitherto unknown. | ||||||||||
Ebm-Papst Mulfingen GmbH & Co. KG
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