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IZM circuit-breakers, IN switch-disconnectors
Tripping characteristics IZMX16
2010 CA08103002Z-EN
www.eaton.com18/23
IZMX16…V(U)... Tripping characteristics for selectivity protection and universal protection
Non-delayed short-circuit protection (I)
I-protection: Adjustable
I-protection: For high short-circuit currents
See Notes 2, 6, 8, 9, 10, 11.
See Notes 2, 6, 8, 9, 10, 11.
I
Available set values for non-delayed short-circuit protection I
sd
J Short-circuit release for very high currents
IZMX16…V(U)... Option Ground fault protection +IZMX-DTV(U)-EP
G: Ground fault protection, flat characteristic curve
G: Ground fault protection, I
2
t-Characteristic curve
See Notes 2, 6, 12, 13, 14, 15, 16.
See Notes 2, 6, 12, 13, 14, 15, 16.
K Set values for short-time delay at I²t characteristic curve
N Flat characteristic curve for the delay time fault protection
L Set values for ground-fault protection
O I
2
t characteristic for ground-fault protection delay time
M Set values for ground-fault protection delay at flat characteristic curve
2 3 4
8765
10
20 30 40 50
0.5 0.7 0.9
0.6 0.8 1
9
I
n
t
[s]
0.01
2
5
6
7
8
9
10
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
3
4
I
2 - 12 x I
n
g
10
d
f
h
l
j
c
b
1230DIA-97 (5722B20)
1230DIA-98 (5722B20)
t
[s]
0.01
2
5
6
7
8
9
10
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
3
4
50 40 30
60
70
80
90
100
200 300 400 600 800 1000
20
10
kA
J
0.25
0.5
0.35
0.75
1.0
1230DIA-99 (5722B21)
0.2
0.1
0.3
0.4
0.5
0.2 0.3 0.4
0.7 0.5
2
5 4 3
8 9 76
0.05 0.07 0.09
0.06 0.08 0.1
0.6 0.8 1
0.9
I
n
t
[s]
0.01
2
5
6
7
8
9
10
20
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
3
4
L
0.1 - 0.5 s
M
K
0.25 - 1.0 x I
n
g
10
0.3
0.25
0.4
0.6
0.1
0.3
0.5
0.2 0.3 0.4 0.5 0.7 0.9
2 3 4 5 6 7 8 910
0.6 0.8 1
I
n
t
[s]
0.01
2
5
6
7
8
9
10
20
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
3
4
O
N
0.1 , 0.3 ,
0.5 s
1230DIA-100 (5722B21)