Siemens SIRIUS System Manual

3RA1 fuseless load feeders
SIRIUS System Manual
5-26
GWA 4NEB 430 0999-02b
3RA1 fuseless load feeders - frame size S2 for rail
Figure 5-20: 3RA1 direct-on-line starting (frame size S2) 3RA1 reversing operation (frame size S2)
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
3) Attached using two 35 mm rails with a depth of 7.5 mm in acc. with EN 50 022 or one 75 mm rail in acc. with EN 50 023.
Clearance to grounded parts at the side at least 6 mm
3RA1 fuseless load feeders - frame size S0
for 40 mm and 60 mm busbar systems
Figure 5-21: 3RA1 direct-on-line starting (frame size S0) 3RA1 reversing operation (frame size S0)
1) Space above the arc chute
2) Lockable in zero position with a shackle diameter of 5 mm
Clearance to grounded parts at the side at least 6 mm
NSK-8172b
8 17
60
DC 149
87
134
18
55
10
260
270
2)
39
10
17
40
125
5
104
3)
5
79
168
SIEMENS
SIEMENS
7
1)
NSK-8173
17,5
65
120
260
270
2)
40
10 17
77
8
10
SIEMENS
SIEMENSSIEMENS
5
17.5
NSK-8174
259
309
10 55
7
18
17
68
95
142
18
28
DC 157
176
34
53
14
SIEMENS
SIEMENS
2)
1)
259
2)
309
10
120
17,5
NSK-8175
10
SIEMENS
SIEMENSSIEMENS
1)
17.5

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