New safety switches from Schneider are ATEX approved and are available as coded non-contact type (or tongue operated type for detection of opening guards.
The XCSDMC..Ex plastic, coded magnetic safety switches can be used in potentially explosive dusty or gaseous environments for safety applications. They are approved for use in ATEX Zones 0-1-2 / 20-21-22, and can be used with Schneider Electric's XPSDMB safety relays. Case protection is to IP66 and IP67, and with no mechanical points of entry they are ideal for washdown machinery areas. The devices are suitable for Category 4/PLe circuits (EN ISO 13849-1) and come with pre-cabled connections to aid installation.
The XCSA/B/C..Ex metallic guard switches can be used in potentially explosive dusty environments for safety applications and come in three versions. The XCS A has no locking actuator; the XCS B has manual locking/unlocking of the actuator by pushbutton operated lock; and the XCS C has manual locking/unlocking of the actuator by key operated lock. The XCSA/B/C..Ex covers ATEX zones 21-22 with protection mode tD. They are suitable for Category 4/PLe circuits (EN ISO 13849-1) and come with an M20 cable gland entry and screw clamp terminals.