W22XB Series - Ex d(e) IIB T4 Gb (Ex tb IIIC T125ºC Db IP6X)


W22XB is one of WEG flameproof TEFC three phase motors lines for IIB group of gas and combustible dust and is available for shaft height 315 up to 500. W22XB line is available for Low, Medium and High voltage with the following powers:

W22XB - Low voltage (≤ 1100 V):
  • IE2 Efficiency level / according IEC60034-30
  • Powers (kW)RPM
    132 up to 11203000 / 3600
    132 up to 14001500 / 1800
    90 up to 11201000 / 1200
    75 up to 900750 / 900
  • W22XB - Medium voltage (≤ 6600 V):
  • Powers (kW)RPM
    90 up to 11203000 / 3600
    90 up to 11201500 / 1800
    90 up to 12501000 / 1200
    90 up to 1000750 / 900
  • W22XB - High voltage (≤ 11000 V):
  • Powers (kW)RPM
    90 up to 11203000 / 3600
    90 up to 15001500 / 1800
    90 up to 11201000 / 1200
    90 up to 900750 / 900

This range of motors up to 90kW comply with efficiency classification code IE2 as established in IEC 60034-30.

In relation to the different available optionals, W22XB motors are designated as follows:

Particular specifications related to Hazardous Areas

This motor series has the CE marking in compliance with European Directive 94/9/EC (ATEX) and is also certified in accordance with IECEx Scheme. The applicable standards are:

W22XB motors are classified as equipment Group II (Surface Industries), suitable to use on the following zones

As standard, W22XB motors are supplied for Zone 1 application - IIB Group of Gases and Temperature class T4 (under request T5 is available).

As standard execution, W22X motors are fitted with flameproof terminal boxes for gases of Group IIB, with specification code Ex d, IIB. Under request and as an alternative execution, these motors can be fitted with an Increased Safety terminal box. In this case the description code is Ex de, IIB. These flameproof motors are certified according to the above standards, by the EU accredited Notified Body INERIS in France.

Main standard construction

Main construction optionals

Voltage and Frequency

As standard, Low Voltage motors are wound to operate on Δ 400 V - 50 Hz. As an option Δ 460 V - 60 Hz is available.

As standard Medium Voltage motors are wound to operate on Y6000 V - 50Hz. As an option Y 3000 V - 50 Hz or Y4160 V - 60 Hz are available.

As standard High Voltage motors are wound to operate on Y10000 V - 50Hz. Other supply voltages and frequencies can be supplied under request.

W22XB line is also available for VSD application.

Motors are manufactured within the tolerances given by IEC 60034-1.

Ambient temperature and altitude

W22XB standard motors are manufactured for an ambient temperature -20ºC up to +40ºC and altitude up to 1000m. As an option motors can be executed for an ambient temperature up to +60ºC and altitude up to 5000m.

Basic design