Explosion-proof switches

Explosion-proof ATEX /IECEx

In areas at risk of explosion through secondary ignition sources there are additional safety measures necessary when using mechanical or electrical devices.
To comply with european and international guidelines (ATEX and IECEx) for explosion protection our safety switches are certified within our quality management system and are ready for use in EX- areas with flammable dust (ATEX category 2D and 3D) 
The switches are available in aluminum housing for zone 21 and 22. The switches in duroplast housing are available for zone 22.

Sitec switches are labelled as follows:

ex icon II 2D Ex tb IIIC T90°C Db X

ex icon II 3D Ex tc IIIC T90°C Dc X


For information on dimensional drawings, data sheets and similar, please visit Downloads.