The 3RN2013-1BW30 is a SIRIUS 3RN2 thermistor motor protection relay from Siemens — a standard evaluation unit with ATEX approval, open-circuit and short-circuit detection in the sensor circuit, safe disconnection, and non-volatile error memory. Rated supply 24...240 V AC/DC, it accepts thermistor PTC inputs and drives a single changeover output rated 1 A at 24 V, 0.2 A at 125 V, or 0.1 A at 250 V. The relay auto-resets or latches with external reset, and the error memory holds the last trip condition even after power loss.
The MTBF of 97 a and MTTFd of 303 a give a reliability baseline for SIL assessments if you're integrating into a safety-related control system.