With the I/O module BWU4379 for ASi Safety at Work in protection class IP67, Bihl+Wiedemann expands its product range for functional safety.
The first Safety Relay in IP67 has a safe relay output with galvanically isolated contact sets, a two-channel safe input up to SIL3 / Cat. 4 for potential-free contacts as well as a digital input. On the one hand, the safe output can be used to create a safely switched AUX junction in the field and thus passive safety, and on the other hand, thanks to the relay, different system parts with different potentials can be safely coupled - in IP67 with a simple M12 cable. ASi and AUX are each supplied to the module via profile cables using penetration technology. The connection of the periphery is realized via four five-pole M12 sockets.