Technical data
9.7 Overload protection/device protection characteristic
SIRIUS 3RM1 motor starter
146 Manual, 06/2016, A5E0345285095020A/RS-AE/005
In addition to the motor protection function, the 3RM1 motor starters also protect themselves
against overload. This means that in the case of 3RM1 motor starters with a rated
operational current of 7 A, an overload trip may occur in the upper current range before the
motor protection trips. If, for example, 8-fold current flows in the case of an unloaded motor
memory model and a set current of 7 A, tripping takes place after approximately one second.
Figure 9-2 Device protection characteristic
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