The PSR-FSP safety relay from Phoenix Contact is a safe coupling relay that is specifically harmonized to operate with fail-safe controls (F-PLC) in process technology. Here, all of the requirements for use in applications up to SIL 3 according to IEC 61508 are fulfilled. The coupling relay has a positively driven safety relay whose contacts have an optimized opening behavior when faults occur.
The specific requirements of a fail-safe control are taken into account using the integrated test pulse filter to extend the lifetime as well as a control circuit to adapt the current drawn.
The safe coupling relay is just 17.5 mm wide and offers users an NO and a signaling contact that can be externally connected. The maximum switched current of the NO contact is 5 A. A 5 x 20 mm standard fuse, externally accessible, is also integrated in the device to protect the load contact. The wiring is simplified using pluggable and coded screw or spring cage terminals.
Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.