hager h3+ - Page 35

356LE005550A
Function of the Energy trip unit
3.2 Protection function
This i²t function makes it possible to improve selectivity with downstream devices.
It is activated from the Isd threshold and works up to 10 x Ir.
In (A)
t (s)
10xlr
tsd
l²t
lr lsd
Short time delay protection I²t