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BETA Protecting

Miniature Circuit Breakers

Configuration

1/73

Siemens ET B1 · 10/2008

1

*

You can order this quantity or a multiple thereof.

Selectivity for miniature circuit breakers/circuit breakers

In the event of a short-circuit, there is selectivity between miniature

circuit breakers and motor starter protectors according to

IEC/EN 60947-2 or DIN VDE 0660-101 up to the specified values

in kA.

Limit values of selectivity for miniature circuit breakers/circuit breakers in kA

Values for 5SY8 on request.

1)

In 240/415 V, 50 Hz systems, the selectivity limits are reduced by 10 %.

I

>

r

tripping current.

Downstream miniature circuit breakers

Upstream circuit breakers

3

RV1.4

I

n

[

A]

16

20

25

32

40

50

63

75

90 100

I

>[A]

192 240 300 384 480 600 756 900

1080 1140

I

cn

[

kA] 100 100 100 100 100 100 100 100

100 100

Selectivity limits [kA]

1)

5

SY4 ...-5

Characteristic A

2

6

10 0.5 0.8 1.5 2.5 3

6/7.5 6/10 6/10 6/10 6/10

10

30

10 0.3 0.4 0.5 0.6 0.8 1.2 1.5 2.5 3

4

16

48

10 --

0.3 0.5 0.6 0.6 1

1.5 2

3

3

32

96

10 --

--

--

--

0.6 0.8 1.5 2

2.5 3

40

120

10 --

--

--

--

--

0.8 1.2 1.5 2

2

5

SY6, 5SY4, 5SY7...-6

Characteristic B

6

30 6/10/15 0.2 0.4 0.5 0.6 0.8 1.2 2

3

6/10/15 6/10/15

10

50 6/10/15 0.2 0.3 0.5 0.6 0.8 1

1.5 2.5 4

4

13

65 6/10/15 0.2 0.3 0.5 0.6 0.8 1

1.5 2

3

3

16

80 6/10/15 --

0.3 0.5 0.6 0.8 1

1.5 2

3

3

20

100 6/10/15 --

--

0.5 0.6 0.8 1

1.5 2

3

3

25

125 6/10/15 --

--

--

0.5 0.8 0.8 1.5 2

3

3

32

160 6/10/15 --

--

--

--

0.6 0.8 1.5 2

3

3

40

200 6/10/15 --

--

--

--

0.6 0.8 1.2 1.5 2.5 2.5

50

250 6/10/15 --

--

--

--

--

--

1.2 1.5 2.5 2.5

5

SY6, 5SY4, 5SY7...-7

Characteristic C

0.5

5 6/10/15 0.4 0.6 0.8 0.8 1

3

6/10/15 6/10/15 6/10/15 6/10/15

1

10 6/10/15 0.4 0.6 0.8 0.8 1

3

6/10/15 6/10/15 6/10/15 6/10/15

1.6

16 6/10/15 0.4 0.6 0.8 0.8 1

3

6/10/15 6/10/15 6/10/15 6/10/15

2

20 6/10/15 0.4 0.6 0.8 0.8 1

3

6/10/15 6/10/15 6/10/15 6/10/15

3

30 6/10/15 0.2 0.3 0.5 0.6 0.8 1

2

2.5 5

5

4

40 6/10/15 0.2 0.3 0.5 0.6 0.8 1

2

2.5 5

5

6

60 6/10/15 0.2 0.3 0.5 0.6 0.8 1

2

2.5 5

5

8

80 6/10/15 0.2 0.3 0.4 0.6 0.6 1

1.5 2

3

3

10

100 6/10/15 0.2 0.3 0.4 0.6 0.6 1

1.5 2

3

3

13

130 6/10/15 0.2 0.3 0.4 0.6 0.6 1

1.5 2

3

3

16

160 6/10/15 --

0.3 0.4 0.6 0.6 1

1.5 2

3

3

20

200 6/10/15 --

--

0.4 0.6 0.6 1

1.5 2

3

3

25

250 6/10/15 --

--

--

0.5 0.6 0.8 1.2 1.5 2.5 2.5

32

320 6/10/15 --

--

--

--

0.6 0.8 1.2 1.5 2.5 2.5

40

400 6/10/15 --

--

--

--

--

0.6 1

1.5 2

2

50

500 6/10/15 --

--

--

--

--

--

1

1.2 1.5 2

63

630 6/10/15 --

--

--

--

--

--

--

--

1.5 1.5

5

SY6, 5SY4, 5SY7...-8

Characteristic D

2

40 6/10/15 0.4 0.5 0.6 0.8 1

1.5 3

4

6/10/15 6/10/15

6

120 6/10/15 0.2 0.3 0.4 0.6 0.6 1

1.5 2.5 3

3

10

200 6/10/15 --

0.3 0.4 0.5 0.6 0.8 1.5 2

3

3

16

320 6/10/15 --

--

--

0.5 0.6 0.8 1.2 1.5 2.5 2.5

32

640 6/10/15 --

--

--

--

--

0.6 1

1.5 2

2

40

800 6/10/15 --

--

--

--

--

--

1

1.2 1.5 1.5

50

1000 6/10/15 --

--

--

--

--

--

1

1.2 1.5 1.5

5

SP4...-7

Characteristic C

80

1600

10 --

--

--

--

--

--

--

--

--

1.2

100

2000

10 --

--

--

--

--

--

--

--

--

--

5

SP4...-8

Characteristic D

80

1600

10 --

--

--

--

--

--

--

--

--

--

100

2000

10 --

--

--

--

--

--

--

--

--

--

© Siemens AG 2008