Monitoring relay 1 change-over Siemens 3RR2143-1AW30 Piece 1 pc(s)

Monitoring relay, can be attached to contactor 3RT2, size S2 Basic, analogueue adjustable Apparent current monitoring 8...80 A, 50...60 Hz, 2-phase supply 24-240 V AC/DC 1 changer Monitoring for current over and under phase failure, Open circuit with or without fault memory Start-up delay 0-60 s Fault peak suppression 0-30 s Switching hysteresis 6% Screw connection technology SIRIUS 3RR2 monitoring relay for connecting to SIRIUS 3RT2 contactors or for stand-alone installation for multi-phase current monitoring of the entire plant or the driven process.
The reliable monitoring for cable breakage, phase failure, phase sequence, residual current, motor blocking etc. creates an increased plant availability. Actual value displays, status messages and unique error messages enable fast and reliable diagnostics. Control connection via IO-Link is also possible. You also save money because only one device is required to monitor a motor along the entire torque curve and no separate current transformers are required. The direct mounting on the 3RT2 contactors means that there is no additional wiring required in the main circuit. You can also benefit from the wide-voltage power supplies for worldwide use.
Available are analogueue adjustable, 2-phase versions and digitally adjustable, 3-phase versions (with and without IO-Link), each in three sizes with different current measuring ranges, with two different supply voltages and two connection types.
Suitable supports are available for the stand-alone installation of the 3RR2 monitoring relays.
SIRIUS relay - a program for all cases.

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