18/22 IZM circuit-breakers, IN switch-disconnectors
Tripping characteristics IZMX16
2010 CA08103002Z-EN
www.eaton.comTrippingcharacteristics IZMX16
IZMX16…V(U)... Tripping characteristics for selectivity protection and universal protection
Overload protection (L) and short-time delayed short-circuit protection (S)
L-Protection: I
2
t-Characteristic curve and S-Protection: flat characteristic curve S-Protection: I
2
t-Characteristic curve
See Notes 1 to 7.
See Notes 1 to 7.
H The characteristic curve for the overload release can extend up
to the M1 set value.
A Set values for overload protection
B Maximum total opening delay
C Minimum total opening delay
D Set values for long delay
E Set value non-delayed short-circuit protection I
i
F Set values for short-time delayed short-circuit protection with flat
characteristic curve
G The end of the characteristic curve is determined by the type of application
and the switching capacity of the selected switch.
5 4 3
6 7 8 9 10
20 30 40 50 60 80 100
0.5 0.7 0.9
2
1 min
0.6 0.8 1
I/I
r
t
[s]
0.01
2
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
1000
900
800
700
600
500
400
300
200
2000
3000
4000
5000
6000
7000
8000
9000
10000
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
2 h
1 h
4
7
24
15
2
0.2
0.1
0.3
0.4
0.5
A
0.5 - 1 x I
n
= I
r
(0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 0.95, 1.0)
B
C
D
t
r
@ 6 x I
r
(2, 4, 7, 10, 12, 15,
20, 24 s + 0/- 30 )
E
(I
i
: 2 - 10 x
I
r
g
10 )
F
(0.1 - 0.5 s)
f
j
h
e
d
b
c
G
1230DIA-67 (5722B19)
0.1
0.3
0.5
5 4 3
6 7 8 9 10
20 30 40 50 60 80 100
2 1
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
H
0.1 , 0.3 ,
0.5 s
b
c
I/I
r
1230DIA-96 (5722B19)
IZMX16...V(U)...




