Especially in safety-related applications, reliable emergency shutdown or activation is indispensable for protecting personnel and equipment. This is why our new safety relays have a 1oo3 (one out of three) structure, using triple redundant contacts. Compared to a single, force-guided contact, the 1oo3 structure offers the key advantage of higher availability. If the single contact of a force-guided relay fails, control of the field device will be lost. In a 1oo3 structure, one or even two contacts can fail without compromising operation of field devices. This, in combination with SIL 3 and ATEX approval for Zone 2, guarantees maximum reliability in your process plant.