ABB REL 551-C1*2.5 - Technical Data

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Thermal phase overload protection (THOL) Chapter 5
Current
4.7 Technical data
Table 91: THOL - Thermal phase overload protection
Table 92: Thermal overload protection mA input
Function Setting range Accuracy
Mode of operation Off / NonComp / Comp
( Function blocked/No temp. com-
pensation/Temp. comp.)
Base current
IBase (10 - 200 ) % of I1b in steps of 1 % ± 2.5% of I
r
Temperature rise at IBase
TBase (0 - 100) °C in steps of 1° C ± 1 °C
Time constant
tau (1 - 62) min in steps of 1 min ± 1 min
Alarm temperature
TAlarm (50 - 150) °C in steps of 1°C
Trip temperature
TTrip (50 - 150) °C in steps of 1 °C
Temp. difference for reset of trip
TdReset (5 - 30) °C in steps of 1°C
Function Setting range Accuracy
Upper value for mA input
MI11-I_Max -25.00 - 25.00 mA in steps of 0.01
mA
± 0.5% of set value
Lower value for mA input
MI11-I_Min -25.00 - 25.00 mA in steps of 0.01
mA
+/- 0.5% of set value
Temp. corresponding to the
MI11-I_Max setting
MI11-MaxValue
-1000 - 1000 °C in steps of 1 °C
+/- 1% of set value +/- 1 °C
Temp. corresponding to the
MI11-I_Min setting
MI11-MinValue
-1000 - 1000° C in steps of 1 °C
+/- 1% of set value +/- 1 °C