Technical data
58 IZMX circuit-breakers, INX switch-disconnectors
Tripping characteristics
CA01305001Z-EN www.eaton.com
Tripping characteristics
IZMX16(40)…A… Tripping characteristics for standard protection
Overload protection (L) and non-delayed short-circuit protection (I)
L-protection: Adjustable
See Notes 1, 2, 3 ￫ page 62.
I-protection: Adjustable
See Notes 2, 6, 7, 8 ￫ page 62.
E Set values for non-delayed short-circuit protection
A Set values for overload protection
B Maximum total opening delay
C Minimum total opening delay
D Set values for long delay
I-protection: For high short-circuit protection for IZMX40 only
See Notes 2, 6, 11 ￫ page 62.
I-protection: For high short-circuit protection for IZMX16 only
See Notes 2, 6, 10, 11 ￫ page 62.
2 h
1 h
543
6
7
8
9
10
20
30
40 50 60
80
100
0.5 0.7 0.9 2
0.6 0.8 1
I/I
r
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 I
n
= I
r
(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)
3
4
6
8
10
2
12
E
0.6
0.8
8
9
5
4
7
6
1
2
3
0.01
0.5
0.7
0.9
1
0.02
0.08
0.09
0.05
0.04
0.03
0.07
0.06
0.2
0.8
0.9
0.5
0.4
0.3
0.7
0.6
543
6
7
8
9
10
20
30
40 50 60
70
2
I/I
n
t [s]
0.1
10
1230DIA-147
Available Adjustable
Instantaneous
Setting 2 to 12 x
I
n
±10%
100 kA
85 kA65 kA
0.01
10
20
30
40
50
60
70
90
0.02
0.08
0.09
0.05
0.04
0.03
0.07
0.06
t [s]
0.1
1230DIA-148
100
200
900
1000
700
800
500
600
300
400
80
I
RMS
[kA]
10
20
30
40
100
200
300
400
500
50
60
70
80
90
1000
600
700
800
900
t [s]
I
RMS
[kA]
0.02
0.08
0.09
0.05
0.04
0.03
0.07
0.06
0.1
0.01
1230DIA-149
IZMX16(40)…A…