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18/22 IZM circuit-breakers, IN switch-disconnectors

Tripping characteristics IZMX16

2010 CA08103002Z-EN

www.eaton.com

Trippingcharacteristics 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)...