Reduces the number of variants Minimizes the configuring outlay and costs Minimizes storage overhead storage costs and tied-up capital--only 3RB21 Overload warning Indicates imminent tripping of the relay directly on the device due to overload phase unbalance or phase failure Allows the imminent tripping of the relay to be signaled Allows measures to be taken in time in the event of continuous inverse-time delayed overloads.
System Manual Simocode Pro Edition 03 2007
