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
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