Siemens Thermistor motor temperature protection Monitoring Relay with SPDT Contacts, 24 V ac/dc. Voltage Sensitivity: Motor Voltage. Maximum Operating Temperature: +60°C. Series: 3RN2. Terminal Type: Cage Clamp. Width: 91.6mm. Dimensions: 17.5 x 91.6 x 100 mm. Mounting Type: DIN Rail. Operating Temperature Range: -25 → +60 °C. Minimum Operating Temperature: -25°C. Height: 100mm. Length: 17.5mm. MPN: 3RN2000-2AA30