Siemens 3RR2241-1FA30 (3RR22411FA30), Monitoring Relay Attachable To Contactor 3Rt2. Size S00 Standard, Digital Adjustable Apparent/Active Current Monit. 1.6 - 16A, 20-400 Hz, 3-Phase Supply 24 V Ac/Dc 1 Co Contact, 1 Semicond. Output For Alarm And Warning, Monitoring For Current Overshoot/Undershoot Phase Failure, Wire Break Phase Sequence Fault Current Blocking Current Warning And Alarm Thresholds With Or W/O Error Log On-Delay 0-99 S Spurious Peak Suppr.0-30 S Break After Fault 0-300 Min Screw Connection