Siemens SIRIUS 3RT Series System Manual page 337

Fuse ratings for solid-state reversing contactors
Table 3- 13 Fuses for protecting against high short-circuit currents
3RF34
3RF3403-.BD
3RF3405-.BD
3RF3410-.BD
Circuit breakers for protecting against high short-circuit currents
Table 3- 14 Circuit breaker ratings for solid-state contactors
3RF34
3RF3405-.BB
3RF3405-.BB
3RF3410-.BB
3RF3412-.BB
3RF3416-.BB
3RF3416-.BB
Table 3- 15 Circuit breaker ratings for solid-state reversing contactors
3RF34
3RF3403-.BD
3RF3405-.BD
3RF3410-.BD
NOTICE
Short-circuit currents
Short-circuit currents can result in material damage.
When combining solid-state switching devices and overload relays the device with the
lowest rated value is decisive as regards short-circuit fuse protection.
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Fuses
Max. size [A] Class
45
45
45
Fuses
Max. size [A]
4
4
8
8
8
10
Fuses
Max. size [A]
4
5
8
SIRIUS 3RF34 solid-state switching devices
Type
J TD
J TD
J TD
Type Current [kA]
3RV1721
3RV1721
3RV1721
3RV1721
3RV1721
3RV1721
Type Current [kA]
3RV1721
3RV1721
3RV1721
3.5 Planning/configuring
Current [kA] Voltage [V]
65
65
65
Voltage [V]
50 480
10 600
5 600
5 600
5 600
5 600
Voltage [V]
50 480
30 480
5 480
480
480
480
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