WAY
Geared motors for hazardous areas
WEG is launching ATEX-certified geared motors from the WG20 series, which also enable direct motor mounting. In accordance with 2014/34/EU, the geared motors are suitable for explosion-protected areas in category 2, zone 1/21 and category 3 in zone 2/22.
The explosion-proof geared motors for zones 2 and 22 with ATEX motors are mounted directly - no adapter is required. WG20 gearboxes with IEC adapters are available for Zone 1/21. WEG has designed an EUSAS-EX motor to match the WG20 geared motor range, which will be available with outputs from 0.12 to 75 kW in energy efficiency class IE3. The universally applicable EUSAS-EX motor thus complies with the upcoming EU directives (EC 640/2009), which will come into force on July 1, 2021.
The helical, parallel shaft and helical bevel geared motors up to 18,000 Nm with outputs from 0.12 to 75 kW are robust and reliable. They are available in sizes from IEC 63 to IEC 250 for zones 2 and 22. All EX geared motors can be designed up to protection class IP66 and are suitable for ambient temperatures from -20 to +40 °C. The motors can also be operated with frequency inverters if the specified drive parameters are adhered to. Add-on modules such as brakes and encoders for explosion-protected areas are constantly being added.
The EUSAS-EX motors have a wide-range winding and can be used in Europe, the USA and Asia, as they have a wide voltage range and offer the option of voltage switching. The motor complies with the North American standard NEC/CEC Class I Division 2 and Class II Division 2. Class I designates areas in which flammable gases, vapors or mists occur. Class II, on the other hand, indicates the occurrence of dusts. The frequency and duration of the occurrence of these substances define the potentially explosive areas as Division 1 or Division 2.
For Zone 1/21, the entire range of WG20 gearboxes can be combined with W22X motors up to 75 kW via IEC adapters. All gear ratios of the WG20 gearbox series and all drive and flange options are possible.
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