Siemens SIRIUS 3RA6 System Manual page 276

Characteristic curves
Setting options
You can influence the 3 tripping functions via different settings.
1. Inverse-time delayed overload release (electronic)
– Select the tripping current as the setting current in accordance with the load to be
– For selecting trip CLASS 10E or CLASS 20E.
2. Short-time delayed overcurrent release (electronic)
– Like the inverse-time delayed overcurrent release, the short-time delayed overcurrrent
3. Instantaneous short-circuit release
– The instantaneous short-circuit release is set to a fixed value in the individual device
– Exception: The device versions with the rated operational currents 0.4 A and 1.25 A
You will find further information on the functions in the following chapters:
● Chapter "Functions (Page 53)" for the 3RA61/3RA62 compact starters
● Chapter "Functions (Page 120)" for the 3RA64/3RA65 compact starters
You will find further information on the settings of the compact starter in the following
chapters:
● Chapter "Commissioning (Page 85)" for the 3RA61/3RA62 compact starters
● Chapter "Commissioning (Page 140)" for the 3RA64/3RA65 compact starters
276
protected. The compact starter offers a wide setting range in the ratio 1:4 for this
function. In accordance with IEC 60947-6-2, the response value is between 1.05 times
and 1.2 times the value of the current setting.
release is also dependent on the selected setting current. The reponse value is 12
times the setting value and is also variable in the ratio 1:4 in accordance with the wide
setting range.
versions. This value corresponds to 14 times the value of the rated operationalcurrent
I of the device.
e
have the same response value as the device version with 4 A.
SIRIUS 3RA6 compact starter
System Manual, 08/2018, NEB560060102000/RS-AB/007