Siemens SIRIUS System Manual

3RA1 fuseless load feeders
SIRIUS System Manual
GWA 4NEB 430 0999-02b
5-21
5 3RA1 fuseless load feeders
5.5.2 Connection
The fuseless load feeders are available with the SIGUT

terminal system.
Conductor cross-sections
The following table gives the permissible conductor cross-sections for fuse-
less load feeders. The specifications apply to main and auxiliary connec-
tions.
Frame sizes S00 and S0:
Table 5-3: Conductor cross-sections (frame size S00/S0)
Frame size S2:
Table 5-4: Conductor cross-sections (frame size S2)
S00
A1/A2; NO/NC
L1 L2 L3
T1 T2 T3
S0
A1/A2; NO/NC L1 L2 L3
T1 T2 T3
∅
5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in
0.8 to 1.2 Nm
7 to 10.3 lb.in
2 to 2.5 Nm
18 to 22 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
2 x (0.5 to 2.5 mm²) 2 x (0.5 to 2.5 mm²)
2 x (1 to 2.5 mm²)
2 x (2.5 to 6 mm²)
AWG
2 x (18 to 14) 2 x (18 to 14) 2 x (14 to 10)
10
10
S2
A1/A2; NO/NC L1 L2 L3
T1 T2 T3
∅
5 ... 6 mm / PZ2
0.8 to 1.2 Nm
7 to 10.3 lb.in
∅
5 ... 6 mm / PZ2
3 to 4.5 Nm
27 to 40 lb.in
2 x (0.5 to 1.5 mm²)
2 x (0.75 to 2.5 mm²)
2 x (0.75 to 16 mm²)
2 x (0.5 to 2.5 mm²)
2 x (0.75 to 16 mm²)
1 x (0.75 to 25 mm²)
---- ----
2 x (0.75 to 25 mm²)
1 x (0.75 to 35 mm²)
AWG
2 x (18 to 14)
AWG
2 x (18 to 3)
1 x (18 to 2)
10 13
10
13
13

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