NHP TemBreak PRO P - STD Adjustments

Commissioning
43
TemBreak PRO P_BE-UM-001-EN V1.3.0
STD Adjustments (I
sd
, t
sd
)
The STD protection is configured by the I
r
and t
sd
adjustment rotary dials, which is performed as follows. Refer to Protection Settings – Short Time Delay
Protection (STD) section for further detail on setting I
sd
and t
sd
Action
Note / Illustration
1
Turn the MCCB to the OFF Position
Open the transparent flap to access l
sd
adjustment dials
2
Using a PH1, PH2 or PZ2 size screwdriver, rotate the I
sd
adjustment dial to the required multiple of I
r
.
NOTE: To turn off STD protection, set I
r2
to the OFF
position, this will
3
Set the time delay by rotating the t
sd
dial to the required
value in seconds.
NOTE: There are two sides to the t
sd
dial to enable or
disable the I
2
t function for STD: Right side to enable, and
left side to disable.