Table 50. Three-phase thermal overload (T1PTTR)
Operation accuracy Depending on the frequency of the current
measured: fn ±2Hz
Current measurement: ±0.5% or ±0.002 x I
n
(at currents in the range of 0.01…4.00 x I
n
)
Operate time accuracy ±2.0% or ±0.50 s
Table 49. Circuit breaker failure protection (CCBRBRF) main settings
Parameter Function Value (Range) Step
Current value
(Operating phase current)
CCBRBRF 0.05...1.00 x I
n
0.05
Current value Res
(Operating residual current)
CCBRBRF 0.05...1.00 x I
n
0.05
CB failure mode
(Operating mode of function)
CCBRBRF 1=Current
2=Breaker status
3=Both
CB fail trip mode CCBRBRF 1=Off
2=Without check
3=Current check
Retrip time CCBRBRF 0...60000 ms 10
CB failure delay CCBRBRF 0...60000 ms 10
CB fault delay CCBRBRF 0...60000 ms 10
Table 48. Circuit breaker failure protection (CCBRBRF)
Operation accuracy Depending on the frequency of the current
measured: fn ±2Hz
±1.5% of the set value or ±0.002 x I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 51. Three-phase thermal overload (T1PTTR) main settings
Parameter Function Value (Range) Step
Env temperature Set
(Ambient temperature used when
the AmbSens is set to Off)
T1PTTR -50...100°C 1
Current multiplier
(Current multiplier when function
is used for parallel lines)
T1PTTR 1...5 1
Current reference T1PTTR 0.05...4.00 x I
n
0.01
Temperature rise
(End temperature rise above
ambient)
T1PTTR 0.0...200.0°C 0.1
Time constant
(Time constant of the line in
seconds)
T1PTTR 60...60000 s 1
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