Siemens SIRIUS System Manual

3RV1 circuit breakers
SIRIUS System Manual
GWA 4NEB 430 0999-02b
2-41
2.4.9 Isolated 3-phase busbar system
3-phase busbars are used to snap circuit breakers of frame sizes S00, S0,
and S2 quickly and easily in a row onto a rail. There is only one power supply,
via a feed-in terminal.
The 3-phase busbar systems are safe from fingers and are shock protected.
They are rated for the short-circuit stress that can occur on the output side
of the connected circuit breakers.
Figure 2-28: 3-phase busbar system
Rated operational
voltage/current
Table 2-17: Rated operational voltage/current
Models
The 3-phase busbars take 2 to 5 circuit breakers, depending on the model.
There are busbars with more generous spacing for circuit breakers with
accessories attached on the side.
Table 2-18: Types of 3-phase busbars
3-phase busbar
3RV1915-.AB
Protective cap
3RV1915-6AB
Feed-in terminal, connection
from below (3RV1915-5B)
Feed-in terminal, connection
from above (3RV1915-5A)
Spacer
Rated operational voltage
690 V
Rated current Frame sizes S00, S0: 63 A
Frame size S2: 108 A
Frame size
of the
circuit
breaker
Spacing Models
S00, S0 45 mm For 2, 3, 4, or 5 circuit breakers
55 mm For 2, 3, 4, or 5 circuit breakers + accessories
63 mm For 2 or 4 circuit breakers + accessories
S2 55 mm For 2, 3, or 4 circuit breakers
75 mm For 2, 3, or 4 circuit breakers + accessories

Siemens SIRIUS Specifications

General

Product brand name	Siemens
Series	SIRIUS
Coil Voltage	24V DC, 110V AC, 230V AC
Switching Capacity	Up to 10A
Mounting Type	DIN rail
Product designation	SIRIUS
Contact Material	Silver alloy
Contact Rating	Varies depending on the specific SIRIUS relay model (e.g., 6 A at 250 V AC, 10 A at 250 V AC)
Switching Voltage	Varies depending on the specific SIRIUS relay model (e.g., 250 V AC, 400 V AC)
Mechanical Life	Up to 10 million operations
Electrical Life	Up to 100, 000 operations
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Size of relay base	Varies depending on the specific SIRIUS relay model