Siemens Reyrolle 7SR45 Argus Device Manual page 72

Functions
3.9 Thermal Overload Protection (49)
Logic of the Function (49)
[lo_7sr45_ThermalOLFn, 2, en_US]
Figure 3-12
Application and Settings Notes
Gn 49 Element
Default setting: Disabled
This setting is used to allow the element to be switched on and off if it is not required.
Parameter State
Disabled
Enabled
Gn 49 Setting
Default setting = 1.0 ⋅ I
Setting parameter for 49 Overload function. This parameter is expressed as a multiple of the relay rated
current and is equivalent to the factor (k ⋅ I
tics. It is the value of current above which 100 % of the thermal capacity is reached after a period. Therefore, it
is normally set slightly above the full load current of the protected device.
72
Logic Diagram of the Thermal Overload Protection (49)
Description
The element is inactive.
The element is active.
rated
) as defined in the IEC 60255-149 thermal operating characteris-
B
Reyrolle, 7SR45, Device Manual
C53000-G7040-C101-2, Edition 09.2020