SIRIUS 3RA21/22 load feeders   
6.10 Technical data 
  SIRIUS Innovations 
622  System Manual, 01/2011, A8E56203870002-03 
Type  3RA2.1  3RA2.2 
Size  S00  S0 
Number of poles  3  3 
Conductor cross-sections - auxiliary circuit (size S00 and S0 contactors) 
Connection type  Ring cable lug connection 
Connection screw  M3 (Pozidriv size PZ 2)  M4 (Pozidriv size PZ 2) 
  Operating tool 
mm  ∅ 5 … 6  ∅ 5 … 6 
  Tightening torque 
Nm 
(lb.in) 
0.8 to 1.2 (7 to 10.3 lb.in)  2 to 2.5 (18 to 22 lb.in.) 
mm  d
2
 = min. 3.2  d
2
 = min. 4.3 
  Usable ring cable lugs 
mm  d
3
 = max. 7.5  d
3
 = max. 12.2 
- 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  
PP
≥
1)
 
A shrink-on sleeve must be used to provide additional 
insulation for the ring cable lugs 
1)
. 
  Application temperature: -55 °C/+155 °C 
  UL 224 approved 
  Flame-protected 
1)
  If two different conductor cross-sections are being connected to one clamping point, both cross-sections must be 
located in the range indicated. If identical cross-sections are used, this restriction does not apply.