Siemens SIRIUS System Manual

3RV1 circuit breakers
SIRIUS System Manual
GWA 4NEB 430 0999-02b
2-5
2.2 Device description
3RV1 circuit breakers are used to switch and protect three-phase induction
motors of up to 45 kW at 400 VAC and for loads with rated currents of up to
100 A.
The 3RV1 circuit breakers have 3 poles. To achieve the highest degree of
flexibility, auxiliary switches, alarm switches, auxiliary releases, and other
accessories can be easily attached to the circuit breakers without tools, as
required.
3RV1 circuit breakers and 3RT1 contactors are built to work together on
both an electrical level and physically. This enables them to be easily and
quickly put together to make load feeders.
Frame sizes
3RV1 circuit breakers are available in 4 frame sizes (S00 to S3).
Figure 2-1: 3RV1 circuit breakers (frame sizes S00 to S3)
The following table shows you the frame sizes and the corresponding maxi-
mum rated operational current at a voltage of 400 VAC. The last column in
the table tells you which three-phase induction motor is suitable for which
particular size.
Table 2-1: Circuit breakers, frame sizes
S00 S0 S2 S3
Frame size Width
Max. rated
operational current
Output power of the
three-phase
induction motor
S00
45 mm 12 A 5.5 kW
S0
45 mm 25 A 11 kW
S2
55 mm 50 A 22 kW
S3
70 mm 100 A 45 kW

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