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5.14 N-phase protection setting
Bit
Range
Value
Meaning
0~15
0~4
0 = 50%
1 = 100%
2 = 160%
3 = 200%
4 = OFF
N-phase protection setting
5.15 Ground/ residual current protection
Bit
Range
Variable format
Meaning
0~7
Ground: 5~50, Step is 5
Residual current: 0~11
Ground: 20ms
Residual current: See below
table
Ground protection action time /Residual current
twice no-action time
8~15
Ground: 0, 15~60, Step is 50
Residual current: 60
/10
Ground/residual current protection shear
coeffi cient
Residual current twice no-action time
Variant
0
1
2
3
4
5
6
7
8
9
10
11
Value (s)
Instantaneous
0.06
0.08
0.17
0.25
0.33
0.42
0.50
0.58
0.67
0.75
0.83
5.16 Load monitoring
Load monitoring mode
Unit
Range
Variant format
Current method 1
Set point 1
A
0.2~1.0 times rated current; Step is 1
×1 or ×2
Note 1
;
Set point 2
A
0.2~1.0 times rated current; Step is 1
×1 or ×2
Note 1
;
Set time 1
1%T
r
20~80
×1
Note 2
Set time 2
1%T
r
20~80
×1
Note 2
Current method 2
Set point 1
A
0.2 - 1.0 times rated current; Step is 1
×1 or ×2
Note 1
;
Set point 2
A
0.2 times rated current - set point1; Step is 1
×1 or ×2
Note 1
;
Set time 1
1%T
r
20~80
×1
Note 2
Set time 2
S
10~600
×1
Power method 1
Set point 1
kW
200~10000
×1
Set point 2
kW
200~10000
×1
Set time 1
S
10~3600
×1
Set time 2
S
10~3600
×1
Power method 2
Set point 1
kW
200~10000
×1
Set point 2
kW
100~set point 1
×1
Set time 1
S
10~3600
×1
Set time 2
S
10~3600
×1
ote:
N
1. ×2 when the rated current
2500A, otherwise ×1.
2. T
r
is overload set time.
Instruction Leafl et
Effective September 2022
IZM6 Series Air Circuit Breaker
Operating Instruction Leafl et
