Siemens Temperature Monitoring Relay with SPDT Contacts, 110/230 V ac. Temperature Sensitivity: Overtemperature. Temperature Sensing Range: 0 → +600°C. Maximum Temperature Sensed: +600°C. Minimum Temperature Sensed: 0°C. Minimum Operating Temperature: -25°C. Width: 22.5mm. CAD Drawing: 3D CAD Model. Operating Temperature Range: -25 → +60 °C. Maximum Operating Temperature: +60°C. Height: 102mm. Dimensions: 91 x 22.5 x 102 mm. Length: 91mm. MPN: 3RS1101-1CK30