Mushroom push-button switch

emergency stopsealedATEX

Use of electrical equipment in gas/dust atmospheres SIRIUS ACT pushbuttons and indicator lights are suitable for use in intrinsically safe circuits, in accordance with the requirements of IEC 60079-11:2011, Clause 5.7 Simple apparatus. For the illuminated SIRIUS ACT versions, the ATEX-certified intrinsically safe LEDs must be used. Intrinsically safe LED modules (ATEX-certified) for gas hazardous areas ll2G Ex ¡b llc T4 Gb The LED modules of type 3SU1401-*BB*0-*AA2 are approved in accordance with IEC EN 60079-11:2012 (Equipment protection by intrinsic safety "i") and are used in gas hazardous zones 1 and 2. They comply with the "ib" type of protection for intrinsic safety. They may only be used in connection with a 3SU1 pushbutton or indicator light, in the enclosure or a control panel. The use of standard (non-ATEX) LED modules in intrinsically safe circuits is not permitted.