The Siemens 3RS2900 is a sensor extension module for 3RS26/8 temperature monitoring relay. The module have 2 sensors and a sensor status relay. Overshoot and undershoot voltage is 24 - 240 V AC/DC . The ambient temperature during operation is 25 to +60 °C. 2 additional resistivity sensors
IP degree of protection is IP20
Degree of pollution is 3
Type of electrical Connection is screw type connection
Precision is 1%