EPSITRON®
Function Description
31
787-1668 Electronic Circuit Breaker
Manual
Version 1.1.0
6.2.3.1
Response of the Electronic Circuit Breaker with Active Current
Limitation
Nominal
current
Shutdown takes place
after 5 seconds,
with an over-current greater than
within 50 milliseconds … 5 seconds,
with an over-current between
(Threshold 1)
(Threshold 2)
(Threshold 3)
0.5 A
0.75 A
1.00 A
1.20 A
1 A
1.20 A
1.50 A
1.70 A
2 A
2.20 A
3.00 A
3.40 A
3 A
3.30 A
4.50 A
5.10 A
4 A
4.40 A
6.00 A
6.80 A
6 A
6.60 A
8.00 A
10.2 A
The function is activated when
•
an over-current measured at an output is greater than the corresponding
threshold for the set nominal current
(Threshold 1)
.
•
the measured over-current is present for more than 0.1 ms.
The activated circuit breaker can respond in one of three ways:
1.
An over-current is present that is greater than
Threshold 3
2.
An over-current is present that is greater than
Threshold 1
,
but less than
Threshold 2
3.
An over-current is present that is greater than the nominal current, but less
than
Threshold 1
