Siemens SIRIUS 3RT Series System Manual page 620

SIRIUS 3RA21/22 load feeders
6.10 Technical data
Type
Size
Number of poles
Conductor cross-sections - main circuit
Connection type
Connection screw
Operating tool

Tightening torque

Usable ring cable lugs

- DIN 46237 with insulating sleeve
- JIS C2805 type RAV with insulating
sleeve
- JIS C2805 type RAP with insulating
sleeve
- DIN 46234 without insulating sleeve
- DIN 46225 without insulating sleeve
- JIS C2805 type R without insulating
sleeve
If two different conductor cross-sections are being connected to one clamping point, both cross-sections must be
1)
located in the range indicated. If identical cross-sections are used, this restriction does not apply.
620
3RA2.1
S00
3
Ring cable lug connection
M3 (Pozidriv size PZ 2)
mm ∅ 5 ... 6
Nm 0.8 to 1.2 (7 to 10.3 lb.in)
(lb.in)
mm d = min. 3.2
2
mm d = max. 7.5
3
≥
1)
A shrink-on sleeve must be used to provide additional
insulation for the ring cable lugs
Application temperature: -55 °C/+155 °C

UL 224 approved

Flame-protected

System Manual, 01/2011, A8E56203870002-03
3RA2.2
S0
3
M4 (Pozidriv size PZ 2)
∅ 5 ... 6
2 to 2.5 (18 to 22 lb.in.)
d = min. 4.3
2
d = max. 12.2
3
.
1)
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