SIRIUS 3RM1 motor starter
Manual, 06/2016, A5E0345285095020A/RS-AE/005
57
Configuration
4
4.1
Rated operational current
Values for rated operational current I
e
Depending on the current setting range, the following rated operational currents apply for the
3RM1 motor starters:
Motor starter version
3RM1.01-..... 3RM1.02-..... 3RM1.07-.....
Rated operational current I
eAC53a
[A]
0.5
2
7
Setting range for I
e
[A]
0.1 ... 0.5
0.4 ... 2
1.6 ... 7 (10)
Minimum current per phase of the motorized load [A] 0.05
0.14
0.6
As soon as the minimum current limit is violated, fault detection (phase failure) picks up.
Note
The devices with I
eAC53a
= 7 A have in addition to this setting value an I
eAC51
setting value for
10 A in the highest setting level. This setting is intended for resistive loads to 10 A and is not
suitable for operating motors. With this setting, there is no overload trip in accordance with
Class 10A. Instead, this takes place in accordance with the description in the chapter
"Overload protection/device protection characteristic (Page 145)".
Derating factors
The maximum settable rated operational current decreases depending on the following
factors:
●
Installation altitude
●
High motor starting current (> 8x starting current)
●
Ambient temperature
