Siemens 3RR2143-3AA30 (3RR21433AA30), Monitoring Relay Attachable To Contactor 3Rt2, Size S00 Basic, Analog Adjustment Apparent Current Monitoring 8 - 80 A, 50-60 Hz, 2-Phase Supply 24 V Ac/Dc 1 Cocontact Monitoring For Current Overshoot/Undershoot Phase Failure, Wire Break With Or W/O Error Log On-Delay 0-60 S Spurious Peak Suppr.0-30 S Switching Hysteresis 6% Spring-Loaded Terminal