User manual

EPSITRON® Function Description 31
787-1662 Electronic Circuit Breaker
Manual
Version 1.0.0
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