This safety relay from the PNOZsigma range provides 1- or 2-channel wiring with 2 normally open contacts, operating from a 24 V DC supply. It is housed in a PC enclosure measuring 17.5mm wide, 98mm long and 120mm deep, with plug-in screw terminals for connection. Typical use is in machine safety circuits requiring compliance with EN 60947-5-1 and related EMC standards, such as emergency stop or guard monitoring functions within control panels.