NXMS series Moulded-Case Circuit-Breaker
10
Tool: slot type screwdriver
2.5
Trip characteristic curve
Operation indicator, flashing during operation
①
Open the transparent cover with a slot screwdriver
click
②
Adjust the parameter value
of each knob as required
③
Close the transparent cover and
seal it with lead if neccessary
This example:
tr is set to 100 seconds
Total rotational angle: 235
°±
10
°
Start
End
tr
( )
S
12
60
80
100
Short circuit short delay tripping time: tsd, 0.3s by default
Note: can be customized, select one gear among
0
.
2s
0
.
3s
、
0
.
4s
、
0
.
5s
、
0
.
6s
、
0
.
7s
、
0
.
8s
、
0
.
9s
、
Rated instantaneous short time current setting: li
(
2
、
3
、
4
、
6
、
8 10 12
) ×
In
+
OFF, 8 gear
、 、
(
2
、
4
、
6
、
8 10 12
) ×
In
+
OFF, 8 gear
、 、 、
14
Default
12
14
For distribution
For motor
Pre - warning and overload indicator, flash during pre-warning
(0.9lr~1.2lr) , and normally on when overload (
＞
1.2lr)
Figure
21
Parameter setting
⑩