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Monitoring Relay - 3RR range_x000D_
SIRIUS 3RR21 and 3RR22 current monitoring relays are suitable for the load monitoring of motors or other loads._x000D_
In 2 or 3 phases they monitor the rms value of AC currents for overshooting or undershooting of set threshold values_x000D_
Monitoring relay attachable to contactor 3RT2_x000D_
For contactor size S00 or S0_x000D_
Analogue or digital adjustable_x000D_
For alarm and warning monitoring for current overshoot/undershoot phase failure, wire break phase sequence fault current blocking current warning and alarm_x000D_
Screw connection/Spring Clamp_x000D_
SPCO output contact_x000D_
The Siemens monitoring relay can be mounted onto 3RT2 contactor._x000D_
It has IP20 rating
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