The unit, which is manufactured by Dold, is a safety relay for two-hand controls and is suitable to use in guarding operators from harm caused by hazardous closing movements in work areas such as machinery and plants. The control device is placed outside of the hazardous area to avoid the operator from getting inside it before a hazardous motion is put to a stop.

Parameter Name	Parameter Value
Measured/monitored value	safety
Contact configuration	2 NO
Network	AC/DC
Applications	emergency stop
Mounting	DIN rail
Norms	IEC, SIL