The Omron safety relay unit has four kinds of 45-mm wide units are available that are 3-safety contact model, a 5-safety contact model, and models with 3 safety contacts and 2 OFF-delay safety contacts. Also 17.5-mm wide expansion units with 3 safety contacts and 3 off-delay safety contacts are available. It has Simple expansion connection. In this relay both DIN track mounting and screw mounting are possible.

Two hand controller
Suitable for PNP OSSD outputs of safety sensors, F3SN, F3SH, F3S-B, F3S-TGR, F3SL