II 2 GD - Ex mb II T4 II 2 GD - Ex tD A21 IP67 T135 °C II 1 GD - Ex ia IIB T4 II 1 GD - Ex iaD 20 T135 °C. XCS-DMC, Coded Hazardous Area. Ex coded magnetic safety switches can be used in potentially explosive DUSTY or GASEOUS environments for safety applications, for example on machines fitted with small guards or covers (with loose alignment), packaging machines, food and beverage processing (sugar refinery, malt house manufacturers, flour mills), petrochemical plants etc. They are approved for use in ATEX Zones 0-1-2 / 20-21-22, and can be used with XPS-DMB safety relays. Protection modes mb, tD and ia Suitable for Category 4/PLe circuits (EN ISO 13849-1) Pre-cabled connection Degree of protection: IP66 ; IP67 Operating zone: Sao : 5 mm, Sar : 15 mm Dimensions: 16 x 7 x 51mm