Siemens SIRIUS 3RH Series, Системное руководство

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SIRIUS 3RA21/22 load feeders
6.10 Technical data
SIRIUS Innovations
620
System Manual, 01/2011, A8E56203870002-03
Type 3RA2.1 3RA2.2
Size S00 S0
Number of poles 3 3
Conductor cross-sections - main circuit
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.