This safety relay is designed for monitoring safety devices with contacts. It has 2 normally open (NO) relay outputs and 2 delayed normally open (NO) relay outputs. The delayed NO relay outputs have an OFF-delay time of 1.5 seconds. The relay operates on a +24 VDC supply voltage and has screw terminals for easy installation. It can be used with 1 or 2 equivalent channels and is compatible with safety devices with OSSD outputs. The reset function can be manually or automatically selected using the switch on the front of the relay.