TSR20M is a safety expansion timer with delayed relay outputs, 3 NO + 1 NC, and a 85-265 VAC (50/60 Hz)/120-375 VDC power supply.The OFF-delay time (0,5s or 1,5s) is set with a switch on the front.
Catalog description
Safety/Expansion Relay Sentry TSR20M VAC/VDC - 120 ... 375 volt DC - 3 NO + 1 NC - OFF-Delay - 0.5 and 1.5 seconds