Eaton Industrial Switchgear - XEnergy XPole Energy distribution, switching and protection

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IZM circuit-breakers, IN switch-disconnectors
Tripping characteristics IZMX16
2010 CA08103002Z-EN
18/21
Trippingcharacteristics IZMX16IZMX16…A… Tripping characteristics for selective protection
Overload protection (L) and non-delayed short-circuit protection (I)
L-protection: Adjustable
See Notes 1, 2, 3.
I-protection: Adjustable
See Notes 3, 4, 5, 6, 7.
E Set values for non-delayed short-circuit protection
I-protection: For high short-circuit currents
See Notes 3, 4, 5, 6, 7.
A Set values for overload protection
B Maximum total opening delay
C Minimum total opening delay
D Set values for long delay
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.
2 h
1 h
5 4 36 7 8 9 10 20 30 40 50 60 80 100 0.5 0.7 0.9 2
0.6 0.8 1
I/Ir
1 min
1
2
3
4
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
t[s]
A 0.5 - 1 x In= Ir
(0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 0.95, 1.0)
B
C
4
7
24
15
2
D
t r@ 6 x I r
(2, 4, 7, 10, 12, 15,
20, 24 s + 0/- 30 )
1230DIA-132 (5722B13)
5 4 36 7 8 9 10 20 30 40 50 60 80 100 0.5 0.7 0.9 2
0.6 0.8 1
I/In
t[s]
0.01
2
5
6
7
89
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
0.80.9
1
3
4
E
2 - 10 x In
g 10
d
h
j
b
f
c
1230DIA-103 (70C1296)
t[s]
0.01
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
50 40 3060
70
80
90
100 200 300 400 600 800 1000 20
kA
F
G
1230DIA-104 (70C1296)
IZMX16...A...