Requirements for safety relays

The requirements of the manufacturers of safety relays, such as protecting the output contacts against welding or other safety components, must be strictly observed. For cable routing, the basic requirements apply as described in this documentation.

Other information by the manufacturer on the use of safety relays for specific applications must also be observed.

Choose the safety relay in such a way that it has at least the same safety standards as the required PL/SIL of the application.