Siemens electronic- Specifications download pdf (Page 29)

Time Current Characteristic Curve

Long Time/Short Time (I

2

t Delay)/Instantaneous Protection Configuration

27

Example: 2000A

SYSTEM

CHECK

Continuous

Long

Time

Delay

Rating Plug

l

n

= 2000A

Instantaneous

Pickup

xl

n

12

1.5

2

3

4

5

6

7

8

10

100

50

60

65

70

75

80

85

90

95

30

2.5

4

5.5

8

10

14

17

21

25

Secs

@6 x l

n

SIEMENS

Short

Time

Delay

Secs

@8 x l

n

.3

.07

.1

.15

.2

.3

.07

.1

.15

.2

I

2

t

Fixed

xl

n

Short

Time

Pickup

9

1.5

2

2.5

3

4

5

6

7

8

Rating Plug

l

n

= 2000A

n

I =%I

r

Amperes in Multiples of Rating Plug Value (I

n

)

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 41 42

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