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Circuit Breaker/MSP 3RV1
SIRIUS System Manual
GWA 4NEB 430 0999-02 DS 01
2-71
2.7.4 Limiter function with standard devices for 500 VAC and 690 VAC in acc. with IEC 60 947-2
The table lists the rated limit short-circuit breaking capacity I
cu
and the rated service short-circuit breaking capacity I
cs
with an
upstream standard circuit breaker that fulfills the limiter function at 500 VAC and 690 VAC.
The short-circuit breaking capacity can be significantly increased using the upstream standard circuit breaker with a limiter function.
The circuit-breaker connected downstream, should be set to the rated current of the load. Be sure when you set up circuit breaker
combinations to note to the distances between the grounded parts and the distances between the circuit breakers.
Make sure that the cabling between the circuit breakers is short circuit-proof. You can mount the circuit breakers side by side.
• No backup fuse required because it is short circuit-proof up to 100 kA.
Short circuit proof up to 100 kA.
1) 10 % overvoltage
2) 5 % overvoltage
2.7.5 Characteristics
You can obtain the characteristics for all the setting ranges from our Technical Assistance team by
e-mail: ([e-mail]
). or over the Internet under:
www.siemens.de/lowvoltage/technical-assistance
Standard circuit breaker
with limiter function
Standard circuit breaker To 5 0 0 VA C
1
)/ 525 V
2
) To 690 VAC
1
)
Type Rated current I
n
I
cu
I
cs
I
cu
I
cs
Rated current I
n
Type A kAkAkAkA
3RV13 21-4DC10 3RV10 2 to 1
• • • •
Frame size S0 Frame size S0 1.25
• • • •
I
n
= 25 A 1.6 • • • •
2
• •5025
2.5
• •5025
3.2
• •5025
4
• •5025
5
• •5025
6.3
• •5025
8
100 50 20 10
10
100 50 20 10
12.5
100 50 20 10
16
100 50 20 10
20
100 50 20 10
22
100 50 20 10
25
100 50 20 10
3RV13 31-4HC10 3RV10 3 16
100 50 50 25
Frame size S2 Frame size S2 20
100 50 50 25
I
n
= 50 A 25 100 50 50 25
32
100 50 50 25
40
100 50 50 25
50
100 50 50 25
3RV13 41-4HC10 3RV10 4 32
100 50 50 25
Frame size S3 Frame size S3 40
100 50 50 25
I
n
= 50 A 50 100 50 50 25
3RV13 41-4MC10 3RV10 4 50
100 50 50 25
Frame size S3 Frame size S3 63
100 50 50 25
I
n
= 100 A 75 100 50 50 25
90
100 50 50 25
100 100 50 50 25