hager h3+ - Instantaneous Protection

36 6LE005550A
Function of the Energy trip unit
3.2 Protection function
3.2.3
Instantaneous protection
The instantaneous protection is designed to protect against high strength short
circuits.It is independent time protection.
Instantaneous protection curve
In (A)
t (s) I
li
Instantaneous protection
Instantaneous parameters
s Ii (x In) Instantaneous protection threshold
Adjusting the Ii threshold
The li trip threshold can be adjusted from the embedded display, the panel display
or the h3+ configuration tool.
Rating (In) Max Ir selector adjustment values (A) Adjustment step (x In)
40 A
3 to 15
0.5
100 A
160 A
3 to 11
250 A
The li trip threshold tolerance for instantaneous protection is ±15%.
Trip time
The instantaneous protection has no adjustable time delay.
The non-trip time is 10 ms.
The maximum cut-out time is 50 ms.