Flameproof motor fully Ex certified for the global market

The WEG W22XdB/W22XdC and W22XdM flameproof motors have been designed to meet the certification requirements for equipment installed in oil & gas and mining hazardous areas respectively. Complying with the ATEX Directive 94/9/EC, it is classified as Group I (mines susceptible to firedamp) and Group II (surface industries), for gases Group IIB and IIC, suitable for use in hazardous area defined as Zone 1 - Gases and Vapours (G), and Zone 21 – Gases, Vapours and Dust (GD).

Commenting on the announcement, Andrew Glover, low voltage motors product manager for the European Market at WEG said: “Having already introduced motors in frame sizes 315 to 500, the line has now been extended to include larger sizes through to a 710 frame. Complying with the latest editions of IEC/EN 60079 standards, the new W22Xd line affords WEG the capability to provide a comprehensive range of hazardous area motor products from IEC frame sizes 71 to 710.”

Innovations in frame design includes a stainless steel tube array which provides air ducts affording both axial and radial flow paths to optimise cooling of the rotor, stator and critical components such as the bearings. An aerodynamic fan and cover provides efficient air flow with minimum noise. 

The main terminal box of the motor incorporates fixing bolt housings affording protection from impacts and environmental damage, and prevention against accumulation of water while providing room for easy connections. 

Available a standard with two, four, six or eight poles in medium and high voltage versions and a range of outputs from 500kW to 4500kW, the W22Xd 560-710 frame range is based on a welded steel construction and features integral solid feet to minimise vibrations, complementing the low noise outputs.