Siemens sirius System Manual page 317

3RA1 fuseless load feeders - frame size S3 for rail
12
23 8
4)
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SIEMENS
7 8 23 12
23
70
Figure 5-22: 3RA1 direct-on-line starting (frame size S3)
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.
4) Hexagonal socket 4 mm
Clearance to grounded parts at the side at least 6 mm
SIRIUS System Manual
GWA 4NEB 430 0999-02b
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5
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160
DC 173
195
3RA1 reversing operation (frame size S3)
3RA1 fuseless load feeders
12
23
SIEMENS
SIEMENS SIEMENS
7 8
80 55
150
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