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BETA Protecting
Miniature Circuit Breakers
Configuration
1/56
Siemens ET B1 · 10/2008
1
*
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Overview
Switching capacity
Particular demands are made on miniature circuit breakers with
regard to switching capacity.
The values are standardized and are determined according to
the test conditions of IEC/EN 60898 or DIN VDE 0641-11.
The values of the rated switching capacity are
and
.
For other test conditions, different values can be specified that
are higher than those of IEC/EN 60898 or DIN VDE 0641-11.
One such standard is IEC/EN 60947-2 or DIN VDE 0660-101 for
circuit breakers.
Rated switching capacity
5
SP4 and 5SY4, 5SY6, 5SY7 and 5SY8 miniature circuit breakers
1)
D50 and D63:
I
cu
= 15 kA.
2)
D50 and D63:
I
cu
= 20 kA.
3)
D80 and D100:
I
cu
= 15 kA.
5
SP5 and 5SY5 miniature circuit breakers
Approvals
VDE
IMQ
U
UL
BV
DNV
GL
LRS
CCC
Miniature circuit breakers
5
SY6
✓
✓
✓
--
✓
✓
✓
✓
✓
5
SJ4 . . .-.HG
--
--
--
✓
--
--
--
--
--
5
SY4
✓
✓
✓
--
✓
✓
✓
✓
✓
5
SP4
✓
--
✓
--
--
--
✓
--
✓
5
SP5
✓
--
--
--
--
--
--
--
--
5
SY5, universal current
✓
--
--
--
--
--
--
--
✓
5
SY7
✓
✓
✓
--
✓
✓
✓
✓
✓
5
SY8
--
--
✓
--
--
--
--
--
--
Miniature circuit breakers according to UL and IEC
5
SJ6 . . .-.KS
✓
--
--
--
--
--
--
--
--
Miniature circuit breakers 1+N
5
SY6 0..
✓
✓
--
--
--
--
--
--
✓
Main miniature circuit breakers
5
SP3
✓
--
--
--
--
--
--
--
--
6 000
10 000
IEC/EN 60898-1
IEC/EN 60947-2
1-
pole
2-, 3-
and 4-pole
1-
pole
2-, 3-
and 4-pole
230
V AC
400
V AC
230
V AC
400
V AC
I
n
[
A]
I
cn
[
kA]
I
cn
[
kA]
I
cu
[
kA]
I
cu
[
kA]
5
SY6
0.3 ... 6
6
30
8 ... 32
6
15
40 ... 63
6
10
5
SY4
0.3 ... 6
10
35
8 ... 32
10
20
40 ... 63
10
15
5
SY7
0.3 ... 2
15
50
3 ... 6
15
40
8 ... 10
15
30
13 ... 32
15
25
40 ... 63
15
20
1)
5
SY8
0.3 ... 2
--
70
3 ... 6
--
50
8 ... 10
--
40
13 ... 32
--
30
40 ... 63
--
25
2)
5
SP4
80 ... 125
10
20
3)
Miniature circuit breakers,
universal current
IEC/EN 60898-2
IEC/EN 60898-2
1-
pole
2-
pole
1-
pole
2-
pole
230
V AC
400
V AC
220
V DC
440
V DC
I
n
[
A]
I
cn
[
kA]
I
cn
[
kA]
I
cn
[
kA]
I
cn
[
kA]
5
SY5
0.3 ... 63
10
15
5
SP5
80 ... 125
3
10
© Siemens AG 2008