Technical Data; Technical Revision History; Three-Phase Thermal Overload Protection, Two Time Constants 49T.275; Identification - ABB 615 series Technical Manual

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4.1.4.9
4.1.4.10
4.1.5
4.1.5.1
615 series ANSI
Technical Manual
Name Type
T_ENA_CLOSE INT32
TEMP_AMB FLOAT32
49F Enum

Technical data

Table 274: 49F Technical data
Characteristic
Operation accuracy
1)
Trip time accuracy
1) Overload current > 1.2 × Trip level temperature

Technical revision history

Table 275: 49F Technical revision history
Technical revision
C
D
E
F
Three-phase thermal overload protection, two time constants
49T

Identification

Function description
Three-phase thermal overload
protection, two time constants
Values (Range) Unit
0...60000 s
-99...999 °C
1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
Current measurement: ±1.5% of the set value or
±0.002 × I (at currents in the range of 0.01...4.00 ×
n
I )
n
±2.0% of the theoretical value or ±0.50 s
Change
Removed the Sensor available setting parameter
Added the AMB_TEMP input
Internal improvement.
Internal improvement.
IEC 61850 IEC 60617
identification identification
T2PTTR 3Ith>T/G/C
Section 4
Protection functions
Description
Estimated time to deactivate
BLK_CLOSE
The ambient temperature
used in the calculation
Status
ANSI/IEEE C37.2
device number
49T
275