Selectivity modules
Manual, 12.2014, C98130-A7579-A1-1-7629
3
In conjunction with a 24 V power supply, the selectivity module is used to distribute the load
current across several branches and to monitor the individual currents in these branches.
Faults in the individual branches caused by overload or short-circuit are detected and
selectively switched off, so that the fault does not impact the other load circuits. This means
fast troubleshooting and minimized downtimes.
The key benefits of the product include:
● A maximum of 4 load branches are monitored for each module
● The response threshold can be continually set for each output using a potentiometer
● Overcurrents are reliably switched off, independent of the cable length and cable cross-
section
● The 24 V supply for the other loads is maintained
● Multi-colored LED for each output for faster troubleshooting on-site
● Floating group signal contact for remote diagnostics (for -2BA00, -2BA11, -2BA21)
● Single-channel signal to serially indicate the state of the individual outputs (for -2BA31,
-2BA41)
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