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IZM circuit-breakers, IN switch-disconnectors
IZM26 tripping characteristics
2010 CA08103002Z-EN
www.eaton.com18/87
IZM26…P... Option Ground fault protection +IZM-DTP-E…
G: Ground fault protection, flat characteristic curve
See Notes 4, 6, 13, 14, 15, 16, 25, 26, 30.
G: Ground fault protection, I²t-characteristic curve
See Notes 4, 6, 13, 14, 15, 16, 25, 26, 30.
L Set values for ground-fault protection
B Maximum total opening delay
M Set values for ground-fault protection delay at flat characteristic curve C Minimum total opening delay
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
R Characteristic curve turning point
IZM26…P... Option Maintenance mode option +IZM-DTP-ARMS
ARMS-maintenance mode
See Notes 4, 6, 12, 18, 19, 20, 21.
G The end of the characteristic curve is determined by the type of application
and the switching capacity of the selected switch.
Q Set values for maintenance mode (ARMS):
R5 = max. reduction, R1 = min. reduction
0.5 0.4 0.3
0.6
0.7
0.8
0.9
1
2 3 4 5 6 8 9 7 10
0.05 0.070.09
0.2
0.06 0.08 0.1
I/I
n
t
[s]
0.01
2
5
6
7
8
9
10
20
30
40
50
60
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
1230DIA-121 (70C1041)
L
0.25 - 1.00 x I
n
g
10
(0.25, 0,26, 0.27, ...,
0.98, 0.99, 1.00)
M
0.1 - 0.5 s
(0.10, 0,15, 0.20, ...,
0.40, 0.45, 0.50 s)
N
0.50
L
0.25 - 1.00 x I
n
g
10
(0.25, 0,26, 0.27, ...,
0.98, 0.99, 1.00)
C
t
[s]
0.01
2
5
6
7
8
9
10
20
30
40
50
60
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
1230DIA-122 (70C1041)
0.5
0.4 0.3
0.6
0.7 0.9
0.8 1
2 3 4 65 7 98 10
0.2
I/I
n
R
B
0.50
0.10
O
0.1 - 0.5 s
(0.10, 0,15, 0.20, ...,
0.40, 0.45, 0.50 s)
5 4 3
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
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
1230DIA-120 (70C1498)
G
Q
8.0
10.0
4.0
6.0
2.5
IZM26...(P)...