Phoenix Contact PSRmini 24 V dc Safety Relay - Single Channel With 1 Safety Contact 1 Auxiliary Contact, Automatic, Function: Emergency Stop, Safety Switch/Interlock, Terminal Type: Screw, Standards Met: cUL, cULus, EAC, Functional Safety, UL, Depth: 102.5mm, Length: 93.1mm, Width: 6.8mm, MPN: 2904950